*Bluetooth CSR4.0+EDR
*A2DP1.2/AVRCP1.0/HSP1.0/HFP1.5
*CVC 5.0 Dual Microphone Noise Reduction echo cancellation
*Frequency Response: 110HZ–20KHZ
*Speaker: 40 mm 32 ohm
*Microphone Sensitivity: -42 dB
*Lithium polymer battery 400mAH
*Music Time:10-15 hours
*Talk Time:>10hours
*Charging Time:3hours