Specification:
Max Sound Output:129dB ± 4dB
Max Sound Gain:50dB ± 5dB
Harmonic Wave Distortion:≤5%
Frequency Range:450~3500 hz
Input Noise:≤30 dB
Battery:AG13 or A675 (Zinc Air Battery)
Working Voltagedc1.5V
Working Current:≤4 mA
Measurement:53x44x9mm
Net Weight:8g
Package included:
1 x hearing aid amplifier
5 x earplug (different size)
2 x AG5 button cell battery
1 x manual
1 x case