Bakeey Mini Size CIC Hearing Aid Sound Amplifier USB Charging – NO.1

Description

• Max sound output: 118±4 dB
• Max sound gain: 32±5 dB    
• Input noise: ?30 dB
• Total harmonic wave distortion: ?5%
• Power supply electric voltage: D.C.1.2V
• Current: ?1.5mA
• Frequency range: 300-3800Hz