16-Channel Digital Hearing Aid Elderly Sound Amplifier With Digital Display Space Charging Box

1. 16-channel digital hearing aid, 3 noise reduction modes, high-definition audio quality.
2. Digital display space capsule, fashionable color matching, refreshing and charming
3. 2 ways to turn on and off
4. 12 frequency bands
5. Compact and invisible behind-the-ear hearing aid
6. Open earplugs
7. Maximum saturation sound pressure level: 123db+/-3db
8. High frequency average: 113db+/-3db
9. Full-range sound gain: 40db+/-5db
10. Frequency response range: not narrower than 250Hz-7500Hz
11. Total harmonic distortion: less than or equal to 3%
12. Equivalent input noise level: less than or equal to 13 dB
13. Rated power supply current consumption: less than or equal to 2mA
14. Rated voltage: 3.7V