Voice Amplifier Loud and clear sound Long battery life Case is made of high impact strength ABS plastic.

T300 Portable Voice Amplifier

Functions:  Voice Amplifier, Microphone, volume control

Feature:  Supporting USB slot/ AUX 3.5mm slot  Power supply: rechargeable battery, keep working 8 hours  Charging time: around 5-6 hours  Frequency response: 180Hz-20KHz Dimension: 100.8x99.3x53.4mm Color: red , black 

Portable Voice Amplifier