Maximum sound pressure level ≤110±3dB
High frequency average: 103±4dB
Full range sound gain: 23±5dB
Frequency response range: 300Hz-6000Hz
Input noise level: ≤25dB
Total harmonic distortion≤3%

1. Mini and rechargeable style.
   2. One-key switch and sound adjustable
   3. Small and light, as light as nothing
   4. Magnetic charging, don’t have left and right limit.
   5. 5 colors Black/White/Beige/Red/Blue are available of item, charge box have white/black color.
   6. With 300 mash charging box, portable travel, charging anytime, anywhere. The headset can be charged 4-5 times
   7,Hearing aids can work about 30 hours after full charging.
   8,Update version of balanced armature speaker, better voice quality