DIGITAL CHARGING SOUND AMPLIFIER

Max Sound Output：           ≤115dB±3dB

Max Sound Gain：                  42dB±5dB

Frequency Range：          350Hz-3500Hz

Working Current：           ≤10mA

Charging case：                About 2 hours

Input Noise：                            29dB+3dB

Amplifier service time：        About 8 hours