EWA Portable Mini A103 Bluetoo...

Product Description Battery : 500mAh RMS : 3 Watt Frequency : 100Hz-18kHz SNR : S/N > 85dB Size : 48 x 38.5mm Playing Time : 4 Hours Charging Time : 2 Hours Protocols : HS/HF, A2DP, AVRCP, OPP