Product information:

Product model: G19
Material: Silicone
Power supply: DC3.7V (lithium-ion rechargeable battery)
Maximum saturation sound pressure level: ≤117dB+3dB
High frequency mean OSPL90:110dB±4dB
Full tone gain: 29dB±4dB
Frequency response range: not narrower than 300Hz to 3500Hz
Total harmonic distortion @500Hz: ≤7%
Total harmonic distortion @800Hz: ≤7%
Total harmonic distortion @1600Hz: ≤7%
Equivalent input noise level: ≤25dB+3dB
Rated power supply current consumption: ≤2mA
Color: Red Blue US, Red Blue EU, Skin tone US, Skin tone EU

Packing list:

Sound amplifier *1