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Shenzhen Greater industry Co., Ltd is one of leading manufacturers of all kinds of headphones, earphones, speakers, and other electric accessories . It is located in Shenzhen, Guangdong, China , We have integrating design, production and marketing together.We devote to design and manufacture high quality product with advanced manufacturing and testing equipments and completed management systems.We not only produce products but also be capable of developing new items according to the demands of the international market.With the reliable quality, competitive price and quick lead time .we have obtained good reputation and wide support from customers .We can offer OEM and ODM services as well. we have obtained good reputation and wide support from customers .Looking forward to building a bright future with you together.For more details, please contact us now.
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    Foldable Kids Headphones with Volume Limited

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    Top selling wireless earbuds for running gym

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  • Bluetooth headsets are becoming a product that people are increasingly favored because it can solve the dangers of the phone we started answering, but also let us not have to be wrapped around an annoying headphone cable How to choose a Bluetooth headset? On-demand optional Bluetooth headset Bluetooth headset to be compatible with mobile phones Bluetooth headset charging 2 hours best Related Links: Buying Tips Select the mobile phone with the brand Cheap is not good quality Clear use repurchase Details can be seen clearly When buying a Bluetooth headset, check whether the Bluetooth headset has any flaws, whether the shell connection is tight, there is no gap, and whether the keys on the headset are elastic. Be sure to turn on the Bluetooth headset and connect it to your phone for call testing. Also check that the accessories are complete, otherwise it will affect the use. For more information, headset business opportunities, headset purchase, please pay attention to China Headset Trading Network: [/], welcome to use free trial membership trial, contact information.
  • There are five wireless headset technologies on the market today, namely infrared, 27MHz radio, Bluetooth, FM and 2.4GHz digital high-speed RF technology.It can be seen that 2.4G wireless technology has the most mature market conditions in terms of comprehensive capability assessment. You can listen to FM radio in a tidy car, on a leisurely bicycle, along with cheerful steps. In this highly competitive and colorful world, you can receive messages from all parties at all times. Listen to music and relax. You can watch great TV shows in the night when you are quiet, without affecting "love you and the people you love." You can get rid of the shackles of the cable. If you need to walk away from the glass of water, don't worry, it doesn't matter. In the gap you walk away, you can listen to clear dialogues and beautiful melodies. Because the sound signal of this earphone can penetrate walls, objects and other substances, there is no angle limit. Wireless headsets have long been related products. The maturity of 2.4G technology has also promoted product development. However, due to the lack of wireless microphones, people can only use wired microphones to cooperate with wireless "listening". The portability alone cannot reflect the advantages of wireless headphones. Although there are many popular technologies such as infrared, Bluetooth, and 27MHz RF for wireless signal transmission, it seems that the most stable, reliable, and practical is 2.4GHz. Why is 2.4GHz audio technology a fragrant? In wireless audio technology, many wireless headset products on the market have 2.4GHz wireless technology as a selling point, which is also a transformation branch of digital peripherals. 2.4GHz refers to a working frequency band. 2.4GHz ISM (Industry Science Medicine) is a wireless frequency band widely used in the world. Bluetooth technology works in this frequency band, and it can work in the 2.4GHz frequency band to obtain a larger use range. And stronger anti-interference ability. And popularly speaking, 2.4GHz wireless technology requires very low power consumption, and is not as expensive as Bluetooth, which can effectively reduce production costs. Bluetooth is typically priced at more than $5 due to the expense of microprocessor and protocol licenses required. In fact, 2.4GHz as an international common frequency band, the application technology derived from it is quite rich. In addition to the so-called 2.4G applications, our commonly used WiFi and Bluetooth technologies also work within the 2.4Ghz frequency range, but the protocols for each work are different. Compared to the huge standard protocol system of WiFi and Bluetooth, 2.4G works and data packages are more concise and easy to use. In fact, through the application of frequency-pairing and auto-tuning technologies, the confidentiality and anti-interference of 2.4G applications are no worse than those based on Bluetooth protocols. Adpot by Google industry new!
  • The following is a more professional headset method, please refer to the following: 1. After receiving the earphone, the music will be played for three hours in the first two days, and the snow sound of the radio will be used overnight. It is the noise we hear, the volume is two-thirds of the usual listening, and the volume is normal in the future. Sound, the old fire can be in the ear for 100 hours, enter the heat for 300 hours, then the headphones are basically opened, you can listen normally! 2, Use music for three or four hours a day, rest for thirty minutes in the middle, then rest for three or four hours and rest for at least ten hours a day. Such a fierce fire cycle to about 100 hours of basic sound, the volume of the first two days is still not too large, so as not to damage the diaphragm! After 200 to 300 hours of squatting, the headphones are already in the open state, you can enjoy the music at any time! 3. Normally listening to songs during the day is OK, take your time. At night, the normal volume of the radio is waiting for you... After 200 to 300 hours, the headphones naturally open! All of the above are quick ways to get the headphones, so that the headphones can quickly enter the normal state, of course, you can not worry, you can listen naturally, you can also slowly feel the changes of the headphones, every day will feel the headphones are getting better and better, this is also a Kind of enjoyment, and finally I wish you all the best! Fashion youth need health and vitality. While pursuing a fashion experience, we must not neglect the grasp of health. For young people in the physical development stage, it is equally important to design a headset that is reasonable to protect hearing health. Everyone knows that our ears are composed of the outer ear, the middle ear and the inner ear. The outer ear receives the external sound and causes the tympanic membrane to vibrate along the ear canal. The vibration of the middle ear tympanic membrane causes the three small bone phases of the hammer bone, the tibia and the anvil. Vibration, the sound is transmitted to the inner ear, the inner ear can produce nerve impulses, and the impulse changes to the nerve energy along the auditory nerve, so that the information of the sound is transmitted to the brain. However, if the earphone is improperly worn or the earphone is too heavy, the sound pressure directly enters the ear and is concentratedly transmitted to the thin tympanic membrane without any room for cushioning, thus stimulating the distal end of the auditory nerve, which is extremely likely to cause hearing fatigue. It also causes some systemic adverse effects. The main symptoms are tinnitus, mild hearing loss, heavy hearing and ear pain. Long-term accumulation may even cause permanent hearing damage.
  • The principle of the dynamic circle earphone is similar to the ordinary loudspeaker. The coil in the permanent magnetic field is connected with the diaphragm. The coil drives the diaphragm to sound under the driving of the signal current. Dynamic headphones are divided into open, semi-open, and closed headphones by openness. At present, the vast majority of earphone earphones belong to dynamic earphones . The moving iron earphone is transmitted through a structurally precise connecting rod to the center point of a miniature diaphragm, thereby generating a vibrating and sounding earphone . The moving iron headset can be easily placed in the ear canal because the unit is much smaller. This effectively reduces the area of the ear portion that can be placed deeper into the ear canal. The ear canal geometry is much simpler than the auricle, belonging to a round shape so a soft silicone sleeve can provide good sound insulation and anti-leakage effects compared to traditional earplugs. The sensitivity of the moving iron is higher than that of the moving coil. The main reason is that the structure of the moving iron unit is almost a closed container structure. A little current can drive it. Here, it should be noted that the relationship between sensitivity and resistance. Due to the higher sensitivity, the moving iron headphones perform better transiently, and they are far better than the dynamic earplugs in dynamic performance, instant detail performance, and sound density. Dynamic iron headphones have a more stable frequency response curve. There are some audible changes in the frequency response curve of the dynamic headphones during different temperatures, humidity, and use. Kinetic iron shows good stability, making the sound quality more stable and reliable, and not easy to change. The moving iron is smaller and lighter. Moving iron headphones help protect hearing. The article comes from China Headphone Exchange
  • Although I already have a lot of Bluetooth headsets, the demand for people is endless. A bluetooth headset is enough for everyday travel, but my bag includes Nintendo Switch in addition to the phone. Although Switch also has Bluetooth, this function is not like a Bluetooth headset, so if you need to go out to play games When I heard the sound in the game, I had to bring a wired headset alone, quite annoying. In the past two years, the sound quality and life of Bluetooth headsets have soared that I will no longer accept wired headsets for commuting. Therefore, a headset that can use Bluetooth but can also be connected to a wired device becomes a member of my purchase list. the reason is nothing more than to have all the features I requested at the same time the price is relatively cheap: It looks like the top 1000 returned 200 after the transaction was successful. Taking into account the performance of this headset, the purchase is simply earned. Of course I didn't make it. . . . Appearance Gallery Due to the hurry of work, there is no time to carefully study the packaging of this headset. The various characteristics of the headset are described in various words on the packaging. The active noise reduction, 32mm control unit and NFC Bluetooth connection are the official focus. Promotional features and features. It is recommended that you carefully study the instructions before use. Unlike today`s Internet companies, Philips` product settings are relatively traditional. There is no quick start guide or direct operation guide. If you do not read the manual, you may rush out and find out how to cut the song. The main function buttons of this headset are integrated in the right ear earmuff frame, the function buttons from left to right are: volume + / song key / volume - / 3.5mm headphone jack / Bluetooth pairing & mute / power button . It can be said that the key function of the earmuff part of the right ear is quite dense. If you are not familiar with the position of the button, the response function may take a certain amount of time, which affects my operation. This small NC button is a noise reduction button for switching normal/noise reduction modes. Each switch requires a long press of about two seconds, which can reduce misuse, but from the design point of view, this button is located in the left front of the headset, it should not be so easy to misuse. This headset is more cleverly designed noise reduction microphone on the top of the headset, usually should be blocked by connecting parts. Benefits noise reduction microphone hand receiver is not exposed, the appearance of beauty and a point, the disadvantage is that I do not know will Does not affect the noise reduction effect. The charging port and noise reduction microphone are usually hidden. Although the earmuffs are small, it is necessary to use a relatively thick soundproof material in order to reduce noise. 8850 earmuffs outside the material is a kind of leather, the interior should be filled with sound-absorbing cotton, even if the noise reduction is not turned on, the headset itself has a certain degree of sound insulation. Disgusted with your .... is removed the earmuffs and found that the sound unit does not imagine the hollow hole, think about it, the hole more noise reduction effect is affected by 80%. But the small unit above the headphone's voice unit is awkward. I'm still not clear. Is it the legendary reverse noise reduction unit? The front said that the thick beam is a little thick. Look carefully. The whole head beam did not use too much comfort. Instead, it was wrapped in a skin material and there was a thin layer of sponge in it. For such a design to wear comfort sexy to doubt. And if the skin is damaged it should be very bad repair. The length of the headphone beam can be adjusted, Philips will always scale on the beam to facilitate our adjustment, full of stars. The headset still adopts a retractable design, which can be folded at ordinary times and does not occupy space in the bag. However, Philips did not match a storage box or something, perhaps related to the positioning of this headset. In addition to the 3.5MM pair wiring previously mentioned with the accessories, there is also a usb charging cable and an aircraft adapter. It seems that there are still many considerations for travel. Of course, the fashion-oriented appearance makes it out of the street without causing too much attention from others. Wear part Regarding headphones, my greatest concern is the sense of wearing, because headphones are very easy to cause discomfort. The 8850's effect on his head is roughly the same, unlike the big earphones of Bose. The force of the inward clamp of the earphone is still relatively large, as long as the overhead beam is adjusted properly, wearing stability is not a problem. Although the earpieces do not cover the entire ear, the soundproofing effect is very good. However, even if it is a small earmuffs, it is difficult to escape the fate of the glasses legs. The landlord has always been fine-framed glasses, so it's okay to hold the glasses up and down. Friends with thicker glasses may be annoyed. At the same time, due to the tight grip of the headphones, there is a slight feeling of pressure on both sides of the temple, and wearing it for a long time may easily cause fatigue. The air permeability inside the earphone earpiece is general, and now the temperature is not very high. Thanks to the design of the small earphone cover, it is not very cumbersome to hang around on the neck, nor does it affect the neck activity. This is a five-star rating. Noise reduction performance Since the original intention of buying a headset was not to go to noise reduction, the noise reduction function was an unexpected result for me. Before I actually used active noise canceling headphones, it was also considered to have an active noise reduction capability. I believe that many of the value-odd odds of active noise reduction experience are exactly what they say. The effect of active noise reduction headphones must also be divided into different use scenarios. The noise reduction effects of different environments are different. Home: The main noise in the home comes from the computer case in my home. There is no obvious traffic noise outside the window. After opening the noise reduction function of the 8850, my first feeling is: What? The noise floor is a bit obvious. However, the sound of the computer's fan was completely covered up, the sound of far-reaching decoration was completely inaudible, and the sound of car flow outside the window could not be felt. Turning on the music again, the noise floor is not obvious. Basically, it is a good time to enjoy music. However, my dad shouted that I didn`t hear it. The door was almost blown by him. Outdoor/Shopping: The main noise of shopping malls is caused by many people's noises, and some shopping malls' background music can also cause resentment. After noise reduction is turned on. The entire world is safe.... It is not completely quiet. The voices of the people around you can still be identified. It just feels that a faint roar disappears in the entire environment. The sound of the surrounding people's voice is probably reduced by more than 50 and beyond. The vocal voice cannot be identified. However, the musical sound of the mall will still be heard in the ear, and even more clearly because of no other noise disturbance. If you turn on the music, you won't need too much volume to cover these, and you can basically go shopping with one person who is at ease (Why do you want to go shopping alone?) Bus: Subway: The text is not described, put an audio up and you feel it yourself: Although it is a software simulation, it is roughly what I heard. The 8850 can only eliminate most of the low-frequency noise, but it is still weak for high-frequency noise. Of course, taking a quieter ride on the subway is a certainty. The volume of the open music can respond to a lower level and protect your hearing. The noise reduction effect of this headset I personally think is generally like, of course, the contrast is very obvious, but when used it will feel that if the effect can be more effective. However, wind noise that is prone to appear in low-end and mid-range products is completely absent, and it is more suitable for street use. I took a closer look. This headset does not have a listening mode, which means that if you want to talk to someone or cross the street, it would be more convenient and safe to take off your headphones. Sound performance There are two kinds of noise reduction headphones, one is more emphasis on sound quality, one is more emphasis on noise reduction effect, 8850 is undoubtedly the former. At the beginning, I didn't have much expectation for the sound quality of this headset. I was quite surprised after using it. Marron's The Sun was used to test the performance of popular music. The song had a clear drum and the instrument accompanied with subwoofer performance. Sao Dang's voice was still unique. The 8850 is quite good in the performance of this song. The low-frequency part of the performance can be said to be appropriate, a sense of space is strong, and a sense of strength, but unlike the Beats headset as low-frequency to hide everything, the vocal part can still be very good outstanding. It will be nice to listen to songs like uptown funk. The same song of Maroon5, Lost Star this song is relatively clear, and my focus is to listen to chorus part of the harmony, you can determine the resolving power of this headset. The actual performance is also quite good, and the various voices are clearly identifiable. The theme song of the Great Wall of the movie is divided into a bridge, written by Fang Wenshan, arranged by Wang Lihong, and played by Wang Lihong/Tan Weiwei. The key to this song is really quite high, plus the vocals of the two singers are really quite good, quite test the performance of the headset. The most disturbing part of this song was when Wang Lee Hom and Tan Weiwei were singing together. It was really difficult to distinguish Wang Lee Hom's voice. The high resolving power of this headset was shown on this song. The voices of the two people were clear and legible. Even when Wang Lihong slammed the treble, the feeling of licking in the throat was even more obvious. Of course, I said before buying this headset to be able to play NS. This function can be said to be without any obstacles. The 3.5mm cable automatically enters the wired mode as soon as the headset is connected, and no other settings are required. At the same time, the noise reduction function can still be turned on. Tested performance of this headset is also very good performance of the game, playing Mario car, the engine and a variety of props, background music performance is quite good. And in the absence of power in the headset, the cable mode is still undisturbed, which is more practical for me, although this headset's super-excellent battery life, I spent three days did not prompt no power, but after all I am a person who does not charge for diligence. It is certainly best if no electricity is available. Of course, there is not much difference in sound quality. However, when using the wired mode, the headset's microphone stops working. My dream of a computer running a mobile NS computer was broken. to sum up I was pleasantly surprised by the sound quality of this headset, proper bass performance, good resolving power, and listening to popular songs was completely sufficient. The switch between wired and wireless is quite convenient. For those of us who go out with a digital device, it can meet the needs of various devices. The shortcomings are all in the noise reduction part: the absence of the monitor mode, the noise reduction effect, and the bottom noise are all problems that it has to face. But returning to the price point of view, 499 really has to ride a bicycle. It is just sound quality enough to be worthy of this price. If you think of it as a Bluetooth headset with excellent sound quality and an active noise reduction function, is it more cost-effective! The title of this article I thought at the beginning: [I'm shocked that the international factory's active noise canceling headphones are just 499!" After I finished this title, I felt too UC, but it really showed the surprise I received. I think a friend in this area may wish to give it a try. Of course, a friend who wants a higher cost performance may wish to wait for a discount, although he does not know when the next discount will be pulled. Although I did not buy the best price, but digital products bought early to enjoy, do not care so much to pull ~
  • It`s time to share the knowledge of the Bluetooth version with everyone. Please read this article in the correct position: While listening to the music you think is good with the bluetooth speaker, while holding your feet, don't forget to think while watching. 2.0 and 2.1 are actually no different. The transmission speed is basically the same, but the distance between the power saving module and the power saving module is farther. EDR is the enhanced data rate, which is the abbreviation of the enhanced rate in Bluetooth technology. It is characterized by greatly improving the data transmission rate of Bluetooth technology, reaching 2.1Mbps, which is three times that of current Bluetooth technology. Therefore, in addition to achieving a lower power consumption for more stable audio streaming, it is also possible to make full use of the bandwidth advantage to simultaneously connect multiple Bluetooth devices. Connect a mobile phone and computer while connecting a Bluetooth speaker. In the Bluetooth 2.0 specification, EDR comes in handy, it correctly defines the modulation technology changes, and the extra packet type, which enables it to transmit at 3MBPS. So, we usually see the "Bluetooth core" Specification 2.0 version + EDR". The actual situation is: there is currently no Bluetooth application that needs to transmit more than 1MBPS. Even for high-quality stereo data streams, it must use subband codec (SBC codec, which requires up to 345KBPS). Therefore, the stereo of the Bluetooth speaker is not so "stereo".
  • Fristly we should consider great audio and ultra-comfortable headset. Recommended for children ages From 3 to 11, Headset description such as 1.40mm drivers that offer a terrific sound that rivals adult headsets. Even if kids can`t tell the difference, they`ll appreciate it all the same. Happily, the superb audio experience is still controlled with a built-in volume limiter, so they won't damage their eardrums. 2.lightweight headphones with high-quality, durable materials that can stand up to the wear and tear young kids will inevitably put this headset through. 3.Padded foam is gentle on smaller ears and stays comfortable for hours at a time without interfering with lengthy listening sessions. 4.Allows for a quick and easy chain of multiple children listening to the same media device. 5.Fortunately, the wonderful sound is matched by standout comfort, thanks to a lightweight build that`s superior to the typical plastic build quality of competing kid headsets.
  • by Stanley Goodner Updated August 09, 2018 Most of us can probably agree that audio quality is an important factor when it comes to music. As for the audio gear that we wear, owning the "best-sounding headphones" in the world matters little if they`re not comfortable for very long. How much enjoyment can you expect while having to make constant adjustments and/or take frequent breaks in order to prevent the development of sore temples or a throbbing headache? Choosing headphones with thicker padding may seem like an obvious choice, but there are more aspects that affect overall comfort than plush ear cushions alone. Sure, weight is a consideration, but lighter headphones can be as likely to generate a sore feeling over time as the heavier ones. There's more to consider than headphones with good looks and modern style. Just like how human faces look similar, yet differ in shapes, sizes, and contours, headphones also exhibit unique variations in details. And that can make all the difference. What works for someone else may not be comfortable for you. So here are the things to keep in mind when you`re searching for those perfect-fitting headphones. Ear Cup Extension,Clamping Force,Ear Cup Rotation,Ear Cup Depth and Size,Cushioning & Headbands Ask about the headphone models they own and what they think. Soon enough, you`ll end up owning the comfortable pair you deserve.
  • Get ready to love your favorite game even more, thanks to the immersive sound provided by Stereo Gaming Headset. This headset is compatible with most gaming platforms, includingPC, laptop, Mac and even phone games. With a high-precision, 40mm magnetic neodymium driver and booming bass, these headphones provide clear sound that enhances your experience whether you`re just enjoying the soundtrack, chatting with team members or losing yourself in the shocks and sounds of your favorite game. The noise-isolating, omnidirectional microphone helps messages come through nice and clear even amidst the most chaotic action, while the extra-soft over-ear pads will keep you comfortable during marathon gaming sessions. Use the convenient built-in controls on the cable to instantly control volume or mute your microphone. Plus, these headphones cost less than $30 and can also be used for video chatting or conference calls, too. The retractable headband is ergonomically designed and comes with soft over-ear pads that help redirect sound and block out distracting outside noises. The lightweight headphones come in black or brown and feature soft ear cushions and a breathable mesh earcup design that is meant to protect your ears from overheating during long periods of use. Noise-canceling microphone can be fixed at the right angle for you or can be folded away when not in use.
  • The letter see it from google news,Thanks for the author write a good article and share on the website. About why people often disagree about the sounds of headphones,reason as below: 1.Scientific Reasons Why People Often Disagree About the Sound of Headphones 2.No Two Ears Are the Same 3. Everybody Has a Different Sense of Space -- With Headphones, at Least 4.No Seal, No Bass 5.Reasons That Aren't Exclusive to Headphones So what can we do? The "gold standard" would be to incorporate multiple listeners plus lab measurements. I did this in my Sound & Vision days, but I'm not aware of any publication that does it at present. There's one simple rule we can all take from this: Be careful before you ridicule other people's opinions of headphones.
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