Before experiencing the sanag bone conduction A11S PRO, I have experienced a variety of bone conduction headphones, and I have a certain understanding of the principle of bone conduction, the principle of bone conduction headphones is to convert sound into mechanical vibrations of different frequencies, through the human skull, bone labyrinth, inner ear lymphatic fluid transmission, spiral, auditory nerve, auditory center to transmit sound waves. The advantage of bone conduction headphones is that the user no longer has to tuck the head of the ear into the ear, which can avoid the feeling of ear swelling. However, bone conduction headphones also have shortcomings, that is, most bone conduction headphones have average sound quality performance, because the skull transmission loss is larger than the airborne loss. And this time to get started is the sanag air conduction headphones A11S PRO provided by @ gold evaluation, the headphones use beamforming technology for directional sound transmission, and the use of sanag-Acavity acoustic structure cavity, compared to ordinary bone conduction Bluetooth headphones, sanag air conduction headphones A11S PRO experience has reached hiFI level.
Similar to the box design of most Bluetooth headsets, sanag air conduction headphones A11S PRO also adopts a square box design, the center of the box is the product color matching diagram, although there are four colors on sale: black, white, black red, white blue, but these four colors are not strictly distinguished on the packaging box.
In the upper left corner of the box is sanag's LOGO logo, along with a graphical LOGO design nested with the letters a and s nested next to each other.
In the lower right corner of the box, two product selling points are marked: sweat resistance and bone conduction.
The back of the box is pasted with the product information parameter table: product name, product model, product weight, Bluetooth distance, speaker frequency, battery capacity, appearance size, etc.
The box adopts the opening method of the heaven and earth lid box, because the box does not hold hands, so when opening the box, it needs to shake up and down a few times to open the lid.
This time, I started with a black and red version, which is very similar to the Jiaming watch I used before. The sanag air conduction A11S PRO looks similar to other bone conduction headphones on the market, with two earpieces + two chip modules.
Unlike other bone conduction headphones, there is a multi-function button on the left earphone panel, and when the system is on, double-click the multi-function button, the headset can switch between TF card mode and Bluetooth mode, accompanied by a "Card mode" or "Bluetooth mode" sound. The chip module block on the same side as the function key has a built-in headphone battery, and the logo of sanag is printed on the outside of the module block.
The right side of the headset panel does not have a physical control button design, the main body of the headset is also made of titanium alloy material, the first reaction after the whole machine is very lightweight. The physical button control area symmetrical with the battery compartment module block, the physical button module block does not have the logo design of sanag on the outside.
The inside of the physical button module block is marked with the headset product model, charging parameters, place of origin, etc., of which the charging power is 5.0V⎓200mA.
Sanag gas conduction A11S PRO has only two buttons, the reason why there are only two buttons, is because the volume reduction / last song key two-in-one, on and off / volume plus / next song three-in-one, in terms of button design can be said to be streamlined can not be simplified anymore.
These two physical buttons allow for 8 logical operations: shut down, power on, answer the phone, hang up the phone, reject incoming calls, play or pause music, switch the previous/next song, and increase/decrease the volume. As for each kind of operation logic, I will not repeat it here. Because the number of control buttons is not much, when the user is proficient in various operating logic, it is completely possible to operate blindly with one hand.
Next to the shutdown key, there is a Type-C charging interface, which has a data transmission function in addition to charging.
The so-called black and red design of the headphones is mainly the black color of the headphone panel part, while the neckband part of the headphones adopts the red color, and the black and red color are formed.
The whole body of the headset adopts high-strength titanium alloy, which can withstand 10,000 reciprocating tests, arbitrary bending and stretching without deformation, flexible and plastic, but also more powerful.
In terms of accessories, the more special is the OTG adapter, OTG adapter This accessory will not appear in other headphone product packaging, with this adapter you can use the U disk to copy the song.
The instructions for the use of the random gift of the product are relatively simple, for users who often tinker with headphones, they can skip the learning process, for small white users, they still need to carefully read the precautions in the instructions.
In terms of charging and data transmission, the mainstream Type-C data cable on the market is used, and the blind plug charging is very convenient.
Sanag Air Conduction A11S PRO adopts Qualcomm QCC Bluetooth 5.0 chipset, supports A2DP/HSP/HFP/AVRCP Bluetooth protocol, whether it is connected to a mobile phone or an audio device, the connection within 10 meters is very stable.
In terms of wearing, because my ears are relatively large, I feel that I can hang firmly on my ears after wearing the headphones, and because the weight of the main unit is about 28g, I do not feel the feeling of weight after wearing. The headphones feature an ergonomic design with multi-point support, so they can be hung stably on the ear even if they are running or performing other large movements.
The collar part is not completely attached to the back of the neck, but leaves a certain amount of space, which can prevent sweat on the head from soaking the collar part during exercise, and even prevent sweat from flowing along the neck collar part to the physical button or charging interface. Another aspect of the wearing experience upgrade is the sanag air conduction A11S PRO uses air conduction, compared to bone conduction, the ear will not be vibrated by high-frequency sound waves, the ear will not be uncomfortable.
In terms of sound quality, the TF mode is used directly. The headset adopts Directinal Tone3.0 directional sound transmission technology, which can effectively reduce the phenomenon of sound leakage, while eliminating call echo and improving call quality.
For the cheers and applause of the audience in the song "Hotel California", as well as the singer's singing and guitar playing, can be clearly distinguished, indicating that the sanag air conduction A11S PRO sound field is good, wide and not depressing, to the high-pitched department, the headphone performance is more balanced, there is no pop, sanag gas conduction A11S Pro's second-generation SAVD-EXtreme digital sound enhancement technology and the second-generation sanag-Acavity acoustic structure cavity are still relatively obvious to improve the sound quality, especially the second-generation SAVD-EXtreme digital sound enhancement technology can dynamically identify the song style and elements, and restore the high-frequency signal lost during compression.
Sanag gas conduction A11S PRO is equipped with a 170mAh capacity battery, from the actual experience of these days is still relatively durable. The official said that in the full power state, it can be standby for about 10 days, play continuously for 8 hours, and only 2.5 hours for full charge. If you are not a heavy headphone user, you should be able to do one charge every three days in the case of a full charge point.
Another highlight of sanag air conduction A11S PRO is that it comes with 32GB of large-capacity storage, which can store more than 10,000 pieces of music, and perfectly supports WAV, FLAC, APE, MP3, WMA format decoding, so you only need to wear sanag air conduction A11S PRO to go out in the future, and you don't have to worry about the dilemma of not being able to listen to songs without a mobile phone. After the headset is connected to the computer, you can see that there are already 100 songs built into the TF card.
After more than a week of experience, sanag air conduction A11S PRO is no different from other headphones in terms of styling design, but the neck hanging collar of flexible material makes the headphones hang on the user's neck, which is very comfortable; in other details, the physical physical buttons will not let the user have a wrong touch, if you are familiar with the operation logic, you can completely operate blindly with one hand; in terms of Bluetooth connection, sanag air conduction A11S The PRO uses the Qualcomm QCC Bluetooth 5.0 chipset, which also guarantees faster data transmission and lower power consumption while providing excellent RF stability; in terms of sound quality, Directinal Tone3.0 directional transmission technology effectively reduces the phenomenon of sound leakage, during the audition process, the sound field performance is good, the three-frequency performance is very balanced; in terms of battery life, the official said that in the full power state, can be standby for 10 days, continuous playback for 8 hours, full charge only 2.5 hours, enough for light headphones to use users for a week.