Features:
*Supports Bluetooth V4.0
*Supports profile A2DP
*Frequency response: 20Hz-20KHz
*Sensitivity: 120db±3db
*SNR: ≥93DB
*Distortion: 0.4%
*Digital volume control
*Built in Mic-phone
*Driver: 33 feet
*Micro USB port for battery recharge
*Built in Li-battery, rechargeable, Battery life: 6~7 hours
*Includes: 3 sets of eartips: 1 small, 1 medium, 1 large