High quality AXON F-22 digital portable personal voice sound amplfier hearing ad receiver
Professional sound amplifying, sound is loud, clear and low feedback
Portable design, easy for carrying
Specifications:
Max Sound Output: 129dB±4dB
Max Sound Gain: 50dB±5dB
Frequency Range: 350 ~ 3500Hz
Voltage: 1.5V
Battery: 5# dry battery