rechargeable personal mini sound amplifier 1. Easy to wear and comfortable for ear 2. Can use anywhere 3. rechargable battery

 Rechargable Mini Ear Sound Amplifier  

Product specifications:

Power Supply:Rechargeable Battery Voltage:3.7VDC

Operating Current:<=16mA+/-20%

Speaker Impedance:200 ohm

Output Power:3mW

Unit Weight:20g(including built-in rechargeable battery)

Rechargable Mini Ear Sound Amplifier