Measured on 1000 user ears, it was found that the maximum ear cavity size was 21mm and the minimum ear cavity was 15mm. The newly designed earphone is like a goldfish, and the body can become longer and shorter. There are 4 card positions in the fishbone, each card position is 2mm. A total of 8mm can be expanded and contracted, thus adapting to the ear cavity of different users. Use "fish tail" to convey variable and adjustable functions.
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Praise
Super Praise
How lovely
A bit like millet's capsule earphone
Personality
Great!!!
The design has been made into academic research, which is really powerful