1.Exquisite design, obvious button, easy operation ;
2. Corresponding uncomfortable threshold properly adjust the maximum output, protect ear ;
3.3 different shape earplugs are provided, which can fit different people’s ear;
4. Open fit type hearing aid, the tube can be adjustable to different sizes ears with comfortable wear;
5. Clear sound quality with low noise microphone, balanced armature loudspeaker, and high gain integrated amplifier;
6. Low frequency and high frequency are changed by one switch to adjust the different environments.
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