The bone conduction with undiminished sound quality is the real experience upgrade, earsopen SS900 true wireless bone conduction headphone review
With the development of technology, the category of sports Bluetooth headsets has evolved to the form of bone conduction, and has also been well received by the majority of sports enthusiasts.
However, most of the ordinary bone conduction is a neck-hanging design, and the wearing method is indeed not very friendly to users wearing glasses, and the position of the earhook will conflict with the frame, resulting in poor wearing comfort, which is also a criticism.
Secondly, the sound quality is indeed very poor, the sound through bone conduction is very turbid, the low frequency is OK, but the loss of high frequency is obvious, resulting in human voices and instrument sounds almost impossible to hear, familiar sounds are completely inflected, users who have requirements for sound quality are also very unwelcome to bone conduction.
As a sports HiFi player, I have been looking for bone conduction that can balance sports and sound quality, and recently experienced earsopen SS900 true wireless bone conduction headset, the performance is okay, perfectly solves the sound quality and wearing problems of bone conduction, the wearing method is also very friendly to glasses users, and you can also pursue sound quality.
Here's a look at your experience and reviews.
I really haven't heard of the brand before, but now the domestic headphone industry has reached the outbreak period, and new brands have appeared every three or five times, and the technical strength is still good, and I tried it with the mood of early adopters.
I checked the brand of Bone Hearing:
Bone Hearing is a Chinese brand of bone conduction headphones under Hangzhou Shenglian Intelligent Technology Company, earsopen is a bone conduction headphone brand under BoCo Co., Ltd. in Japan, and the first truly wireless bone conduction headset on the market earsopen PEACE TW-1 is their home.
Therefore, this headset is a joint production of two companies, the brand name is earsopen, and the bone conduction headset using BoCo's new generation of bone conduction technology is still technically remarkable.
The headset is a TWS true wireless form, the combination of the iconic split earphone and the charging storage compartment, the weight of the single earphone is controlled at 7.7g, which is easy to carry.
The wearing style is also different from our common in-ear TWS headphones and neckband headphones, it is a form of clamping, continuing the clip-on wear of the previous generation PEACE TW-1, which is still unique in bone conduction headphones.
Compared with other bone conduction headphones, the wearing method is indeed very novel, clamped to the pinna like an earring, with an ergonomic design for the shape of Asian ears, and there is no foreign body feeling of in-ear earbuds when worn, nor the feeling of squeezing over-ears.
The skin contact surface material is PC+ skin-friendly silicone spraying, with anti-slip skin texture, silky and delicate, and the overall wearing comfort is very good.
The shape is also very recognizable, at first glance it looks like an earring, it will not look too obtrusive, and it also has a certain face modification effect, which is very suitable for female users.
The vocal unit of bone conduction is also different from the regular headphone vocal unit, there are no open holes to export sound, and I was very curious about its principle.
From the promotional video, we can see that the pronunciation unit structure of the SS900 seems to be similar to our common headphones, which should be a type of "moving iron", using BoCo's 9th generation conduction oscillator technology, which looks like a round "moving iron".
When I played the music, I measured that the whole headphones were vibrating, and the smaller front end and the larger rear end were both vibrating. I think it turns the entire headphone into a pronunciation unit, and when playing music, the entire front and rear end of the headset have vibration, and it can move on the plane, obviously the vibration frequency of the front and rear end is inconsistent.
The schematic diagram of bone conduction / air conduction is as above, bone conduction is actually a circle of skull around the ear and cartilage in the pinna are feasible paths, and the vibrator vibration itself will also drive air vibration to conduct sound.
Then look at this ear clip wearing method, obviously it has both bone conduction pathway and air conduction pathway, open bone conduction headset easy to lose the low frequency band, this headset has excellent performance, and the middle and high frequency band is better.
I touched the bone next to the ear with the front and back end of the headphones respectively, and I found that the low-frequency sound conduction at the end of the big head was relatively in place, while the end of the small head became cloudy through the bone conduction, and the actual performance was also in line with my judgment.
The frequency response curve was measured, but the method of testing the frequency response curve of traditional air conduction headphones was used, because the listening method of bone conduction headphones was different, so the actual experience of listening and the frequency response curve of the test were different, for reference only.
As I expected, the low band is heard through the bone conduction path at the large head end, not through the air, so the test loudness is low but the actual perception of the human ear is not low. The middle and high frequency bands can be measured, and the magnitude has also risen by a level.
So this is an ingenious bone conduction listening design, high, medium and low frequencies can be well transmitted to the auditory nerve, but also make it stand out from many bone conduction, is a real sense of bone conduction headphones that can pursue sound quality.
In terms of transmission, the SS900 uses Qualcomm QCC3040 chip to support Bluetooth 5.2, the transmission speed and distance are well improved, and at the same time supports apt-x HD encoding, which can transmit a near-lossless format, which is better than most headphones that only support AAC/SBC.
The sound quality was measured, and several commonly used HI-RES high-resolution and Flac lossless songs were selected for audition.
- The classic old song "The Moon Represents My Heart", Teresa Teng's sweet and clear voice has a good display, the vocals are clear and unimpregnated, the details are rich, and the mid and high frequencies are far better than other bone conduction.
- The sound field test "Hotel California", the sense of presence performance is general, it should be the reason for open, the directional sense of the sound details are not very delicate, there is a stereo direction, but the azimuth resolution is not high.
- Trio's "Ferry", the vocals, drums, and strings are clear and separated, and the vocal part is pure and free of other contamination, which can easily lock the vocals and strings in all frequency bands have a good display, especially the subtle differences between low-frequency strings and drums can be very clearly distinguished, and the low-frequency display is also good, and the loudness and mid-high frequencies are at one level.
- Vocal high-frequency "One I Love", the female voice is crisp and translucent, the a cappella part is clear and pure, the singer's subtle breathing sound and ventilation sound are clearly displayed, the resolution is good, and the high frequency is very beautiful.
- Another vocal high-frequency "Opera 2", the piano tone is highly reproduced, especially the bass section has a strong impact, and you can even feel the vibration of the periosteum, the high-frequency display level of the vocals is also very high, the voice is high but not sharp, and the resolution is good.
The overall performance is not bad, there is no problem of cloudy bone conduction in earhooks, low, medium and high frequency performance is good, almost can compete with other earbud headphones, I didn't expect that today's bone conduction can also pursue sound quality.
In general, earsopen SS900 true wireless bone conduction headphones can be said to be a surprise, with the advantage of bone conduction open listening, suitable for sports outdoor scenes. Qualcomm QCC3040 chip Bluetooth 5.2 transmission supports apt-x HD encoding, has a high level of sound quality and resolution, high ear clip wearing comfort, can not shake off glasses, user-friendly.
If you have portable, sports and sound quality requirements for headphones at the same time, the SS900 true wireless bone conduction headphones are a better choice.