TWS Magnetic Wireless Charging Chamber Acoustic Hearing Aid

Product information:
Power type: USB
Specification: USB cable
Battery life: more than 12 hours
Product Model: Z-19
Power supply: DC3.7V (lithium ion rechargeable battery)
Zui full sound pressure level: ≤ 117dB + 3dB
High frequency average OSPL90: 110dB + 4dB
Full Sound gain: 29dB + 4dB
Frequency response range: less than 300Hz ~ 3500Hz
Total harmonic distortion @ 500Hz:≤ 7%
Total harmonic distortion @ 800Hz:≤ 7%
Total harmonic distortion @ 1600Hz:≤ 7%
Equivalent input noise level: ≤ 25dB + 3dB
Rated ICC, IDD consumption: ≤ 2mA