디지털 충전 사운드 앰프

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