Bluetooth headset as a wireless connection headset, based on today's Bluetooth technology and headset structure, Bluetooth headset and common wired headset, Bluetooth headset sound quality is naturally weaker than the same price of the wired headset, Bluetooth headset advantage is Convenient. Article according to the use of headphones divided into call type, video type, sports type, noise reduction type four categories, click on the left subtitle to jump to the appropriate part
Structurally,
First, the Bluetooth headset integrates the decoder and amp into the headset while adding a battery. At the same price point, compared to wired headsets, Bluetooth requires more parts and more complex designs, and sound quality will naturally be discounted.
Second, Bluetooth technology itself is limited by the transmission rate, and it is also discounted for sound quality. Although Sony released BlackTech's LDAC wireless audio technology, it claims to be 3 times faster, but it only maintains the maximum bit depth of 96 kHz/24 bits, which is still inferior to the wired ratio.
Finally, limited by the battery's power supply capacity, due to battery life considerations, Bluetooth headsets are basically impossible to integrate high-power high-end decoding amps.
Therefore, choosing Bluetooth does not have too much expectation for sound quality. Pursuit of sound quality is still to get on the desktop, Bluetooth headset is characterized by the premise of being portable and easy to use, able to provide good enough sound for the vast majority of users.
PS: The bluetooth headset adopts the Bluetooth transmission technology. The current better results are only the SONY black technology LDAC that supports its own products, and Apt-X technology. Apt-X is a digital audio compression algorithm based on sub-band ADPCM (SB-ADPCM) technology. If you want to develop too much content in detail, it will not be repeated here. You only need to know that Qualcomm's Apt-X needs to charge (remember the headset There is no charge, mobile phones and other output devices charge, so some mobile phones do not support (for example, Apple does not support Apt-X).
From the functional positioning
Bluetooth headset can be divided into: call type, video type, sports type, noise reduction type
Different design orientations determine different design requirements for the headset. For example,
The headphone with the main call function is generally a monaural design. At the same time, it is required to be able to connect multiple devices, and has a good noise reduction function and a function of reporting telephone numbers and short messages.
A large part of headphones that emphasize sound quality are head-mounted designs, which are more boring in summer.
Sports headphones require high waterproofness and stability.
The low-end earphones are limited to price factors and generally only meet one or two functional requirements. High-end earphones can take into account multiple functional requirements. The following description will be based on different functional positioning. Due to limited space and personal ability, it is impossible to introduce all the headphones one by one. Here, I can only select the earphones that I think are more representative and I have used in each price range to introduce them. I hope to help newcomers choose Bluetooth headsets. .
PS: Bluetooth headset uses Bluetooth technology and wifi, Bluetooth mouse is to go 2.4G frequency band, mutual interference is more serious, so for the promotion of the Bluetooth range, look like, do not have to be careful, usually a room with little problem, partition The effect depends on the environmental interference and communication distance.
PS2: For security reasons, try not to use headphones, or make phone calls or listen to songs while moving in public.
PS3: Bluetooth headset does not need to consider the radiation problem, the general use of the transmission power is 1mW, instead of worrying about Bluetooth radiation, it is better to worry about the sun possible skin cancer, the sun's radiation than most of the Bluetooth.
Call typeThis type of headset is generally less effective for listening to music because of functional positioning and price issues, but it is better than many expensive music or sports headphones. It does not matter if the call type headset supports Apt-X, and it is not a major consideration for selection. These earphones are generally classified into a monaural type and a neckband type, and the neckband-type battery life is generally prominent. However, in the case of sweating in summer, the comfort is poor, and the monaural type of battery life is relatively short. On the Bluetooth version, the Bluetooth 4.0 version has been greatly improved in power saving. The 4.1 version is mainly aimed at wearable devices and has little impact on the headset, so it does not need to pursue the latest Bluetooth technology. In this kind of earphone, the individual compares and recommends the Plantronics legend, the endurance, the noise reducing effect, the call clearness and so on performance all to be very good.
The entry models recommend millet's Bluetooth headset. For this price point, things are doing very well, but compared with the legend, the gap is still obvious. This site has more drying orders, and interested parties can look for themselves. Individuals are not very fond of this way of wearing (refer to the official map below), and they tend to be more legendary. They have better stability and comfort.
My hand is black, but I feel better looking white
Official wear renderings
Plantronics M165
Buy headphones from a mobile phone. After a while, the noise reduction capability of dual microphones is relatively common. Others are fine and can meet basic call needs. Wear similar to millet.
The Legend Voyager Legend
The highly acclaimed headset is also my current Bluetooth headset. The Triple Noise Cancelling Microphone works well and is very friendly to wear. Even if you wear it all day, there is no discomfort.
The legendary vicissitudes of life
Headphone wear effect depends on the official promotion map 
Jabra STORM Chop 3
The same high praise for a headset, the focus is very handsome! It used to be a long time before the legend change, from the previous generation of string moon WAVE+ to the current generation of string moon 3, used to speak legendary and better for long wear experience, but! The appearance of string moon is very handsome!
The two generations of the moon were lost for the sake of sending people to change the legend, so no physical map, we see the official promotion map
LG HBS series
Lg acclaimed series. In the past two years, when the number of calls was particularly high, I bought an 800. The earliest feature of these headphones was life and wearing comfort. However, when summer sweating was more common outdoors, the experience was poor. More suitable for air-conditioned places such as offices. This Bluetooth 3.0, ANC noise reduction, apt-X lossless and other functions. Although the wearing method is relatively stable, the effect of sweating is generally used as a sports earphone.
On the wearer, individuals tend to go under the collar and the personalities on the poster are not very like
JAWBONE era 5
Compared with colleagues' JAWBONE era 5, although the earphone is bone conduction, the actual experience is no better than the legend, but friends who like high technology can try it. Earphones are shorter and more convenient than pockets
For such headsets, the emphasis is on waterproofing and stability. The importance of sound quality is low because in actual sports, attention is rarely concentrated on the sound quality. Only two such headsets have been used. Basically, headphones are not used for personal sports.
There are two reasons for this. There is a traffic safety. The public places listen to the earphone while exercising. They have no concentration and are not responsible for themselves and others. The second is hearing security. In outdoor sports, in order to ensure the clarity of sound, the sound of the headphones will inevitably open larger, which will easily lead to hearing impairment, and hearing impairment is irreversible.
Sony NWZ-WS615
This headset is a good place to bring their own mp3, exercise can avoid the additional mobile phone to use the problem (this section of the headset when the Bluetooth mobile phone is not stable, will be broken). The sound quality and the conversation are more general, but the basic sound quality is rarely paid attention to. The attached remote control does not feel useful
It can be used to wear spectacles, but it does not feel particularly good.
AFTERSHOKZ BLUEZ 2S Bone Conduction Headphones
The main problem was leakage, which was felt by the friend's play. At the same time, the wearing comfort was more general. However, the advantage is the use of bone conduction, do not block the ears, outdoor sports safety is better. The sound quality feels worse than the Sony NWZ-WS615. This product has a big problem is that the glasses party is not very friendly, specific can see the map
There is no real thing in this headset. Let's look at the promotional picture.
This type of headset used more, this type of headset has a common feature is the sound quality and the price of a wired headset gap, based on Bluetooth transmission technology and battery limits, even if you do not consider the price, nor can you reach the level of hd600 headset Better sound headphones.
For me personally, for Bluetooth headsets, a 320k audio source is enough to use, with sony z4 and Sennheiser's wireless gimmicks and sony 1ABT tested, 20 out of 320k and lossless shuffle playback, and Can not distinguish between the two more clearly. There are two reasons for this result. The battery limits the power consumption of decoding amps, and Bluetooth technology limits the transmission of high-quality music.
Before introducing the model, there are two other technologies that claim to improve sound quality.
Black technology LDAC: sony's black technology LDAC claims to be 3 times faster, can maintain the maximum bit depth of 96 kHz/24 bit, but the speed is not three times faster does not mean that the sound quality is increased by 3 times, at the same time this technology only supports their own equipment, This means that if you connect a laptop, or a mainstream mobile phone, it is hard to enjoy the gains of this technology. As far as my personal experience is concerned, it doesn’t make sense to upgrade ldc.
Apt-X Technology: Apt-X Technology claims to be able to output CD-quality sound, but because of this technology Qualcomm charges, there are not many supported devices (Samsung's flagships have supported recent generations). For example, Apple supports acc but does not support this technology, but in view of the current mobile phone homogenization and manufacturers' emphasis on sound quality, individuals are more optimistic about the popularity of this technology in the Android camp in the future.
Then, cd is 44.1KHz/16bit, and dsd is 196Hz/24bit. This also shows the difference between Bluetooth and cable
Here bit refers to the accuracy, hz refers to the sampling rate, mouse drawing is relatively simple, we see a meaning on the line. Red represents the sound curve. Black and blue represent the actual sound curve. The higher the sampling rate is, the closer the curve is to the actual sound curve. For example, the blue sampling rate is higher than black, so the shape is closer to the actual curve. Bit refers to the precision, this represents the recorded value, such as 16bit, which means that the data recorded for each sample is one of 65536 (2 of the 16th power) possible values. 24bit is one of (2 of the 24th power) possible values. In fact, the Bluetooth headset to cd level is 44.1KHz/16bit even if it is good, and then limited to the quality of the headset itself (battery limits the Bluetooth headset uses a higher performance decoding amp), I personally feel that the difference is not obvious.
From the gain brought by the bit rate
LDAC (Home Appliance Support Only)> APT-X (CSR Charge Authorization)> ACC (Apple Device Support)> SBC (Any Support for A2DP Specification)
Innovative WP-350
Support apt-X, with a microphone, the disadvantage is the general noise reduction capability, the call effect is not very good. Charge for 1 hour, battery life 8 hours. Entry-level Bluetooth headsets, which are not very good but are acceptable, can be folded flat, relatively portable, and Bluetooth has a noise floor.
AKG Y45BT
Bluetooth is very convenient but the sound quality is not good, I feel better than my own k420, but not as good as 450. There is also the problem of noise
Samsung Gear IconX Real Wireless Headset
Airpods are still booked, but similar Samsung Samsung Gear IconX is available on the market. My hand this is to buy note7 sent, with a few days, I feel Gear IconX sound quality in general, call quality is not as legendary, but very portable, but also high color value, the heartbeat sensor, proximity sensor, acceleration There are also many sensors, such as sensors, which are worn very steadily but are generally worn for a long time. A bunch of sensors feel that the head is larger than the actual one, and it takes a few days to restore the combination of the legendary + bracelet. However, if there is a need to listen to songs at any time, this headset is still worth buying, the sound quality and the two hundred plugs. Supports SBC, does not support APTX
Official wear renderings, personally think it is still very handsome
Philips (PHILIPS) M2BTBK
This is a credit card point exchange, the overall feeling is a law-abiding headset. However, interested Bluetooth headset can look at, according to the characteristics of Philips, it is estimated that soon will be able to start eighty or nine hundred, more than a thousand of the price is a bit high, the price is more inclined to 1abt
Sony MDR-1ABT
If you simply need an audio-visual headphone and don't add noise-reduction features, then 1abt is a good choice. Sound quality in the Bluetooth headset which can basically be considered to the top, at the same time, with their own mobile phone also ldc black technology plus. Headphones can be folded flat for easy storage and touch operation. Wear it comfortably for a long time.
This type of headset is relatively small, I said together. There are two types of noise reduction headphones.
An emphasis on noise reduction, in addition to bose qc30 qc35 do not have to consider anything else, noise reduction and other home headphones are not on a level. Qc30 not heard, but from the use of qc20 qc25 experience before, qc35 is a big headset, relative qc30 will have an advantage over a long time to wear. In addition qc35 sound quality has a short board, and does not support APTX.
Another major emphasis on sound quality, Senhai Big Skull II, sony's new MDR-1000X is a good choice, the two I am currently using Senhai big girl, and my friend's MDR-1000X actual comparison However, I feel that the sound quality of both is very good, but personal choice will still choose Sen Hai, I feel the ears prefer the sound of the big girl, which may be more related to my Senhai headphones. MOMENTUM On-Ear Wireless (Blue Skull Bluetooth Edition) personally think that it is relatively pit, there is a gap between the sound quality and the big girl, not recommended. And Beats Studio Wireless, personally do not recommend this headset, noise quality is not outstanding, the appearance does not feel better than sony Senhai better, Apple Store has tried many times, or feel Senhai big girl and MDR-1000X is better Individuals at the same price point prefer innovative Aurvana Platinum. Senhai's MM 550-X is also a good headset, but the State Bank Taobao looked at it, more than 3,000 prices feel inappropriate, so it is not recommended (sony MDR-1000X and Senhai Bluetooth big girl in Bluetooth + Noise reduction class headphones, be regarded as more expensive, but taking into account the price of this type of headphones itself is relatively high, so I feel better in one step, it is not recommended to choose more than a thousand entry-level and primary Bluetooth + noise reduction headphones , short board is more obvious)
Before this time, I had a sun list and I was interested in it.
Summary :If you do not consider the price factor, and want a headset to solve all the problems, daily commuting, bose qc30 is a good choice, in addition to the music sound quality in accordance with the previous qc20, qc25, qc35 experience, visual test will be the same level and similar headphones, other not Obvious short board, a wide range of applications. If you often travel long distances, it may be more appropriate to use qc35 for a long time. If the demand for noise reduction is not high, there is a certain requirement for sound quality. The MDR-1000X and the Bluetooth Headset are all good choices. Look at personal preferences. If there are more phones, it is necessary to have a call headphone with all kinds of best-sellers such as the legendary Plantronics. Bluetooth radiation is relatively low, but the radiation of mobile phones is relatively large, and it is also more convenient for Bluetooth headsets to answer the phone.