pTron Soundster Pro

Connectivity Advanced Wireless Transmission Distance Upto 10m Speaker Size 40mm Frequency Response 18HZ-20kHz Impedance 320 Mic Sensitivity -42+3dB Battery Capacity 1000mAh Music Playtime Up to 20 hours Charging Input DC 5V/1A Charge Time 5-6 hours Standby Time 300 hours Other Support Aux & TF Card Slot