*Chip: CSR8645 with APTX
*Battery: 260mAh polymer with overpressure overcurrent protection board
*Sensitivity: 93dB±3dB
*Frequency Response: 20Hz-18KHz
*Call Time: 18 hours
*Music Paying Time: 19 hours
*Standby Time: 520 hours
*Product Size: L55mm*W7.3mm*T1.5mm