A hearing aid careful not to break the wire, don't break the headset microphone, don't poke with a small screwdriver tip and hard.

盒式助听器注意不要扯断导线，不要摔坏耳机，不要用尖且硬的小螺丝刀捅麦克风。

youdao

This products select quality galvanized lead wire, through automation, precision wove, also using metal plates stretching, punching, it is used in the microphone audio equipment.

该产品选用优质镀锌铅丝，通过自动化、精密准确编织制成，亦有采用金属板拉伸、冲孔而成，用于做麦克风网、音响设备。

youdao

Instead of overcoming my fear of talking to strangers and doing interviews, I decided to wear a wire - a hidden microphone under my shirt - and for the next three years I recorded my life in secret.

BBC: Why I secretly recorded my life