*Bluetooth version: V4.1+EDR
*Transmission distance: 10 meters
*Battery capacity: 80mAH
*Talk time: 6-8 hours
*Music time: 6-8 hours
*Standby time: 240 hours
*Charging time: 1.5 hours
*Speaker：16Ω20mW x 2
*Sensitivity: DBM -80
*Signal to noise ratio: 95dB
*Bearing: all directions
*Frequency range: 2.402GHz-2.480GHz
*Transmit power: 0dBm. Second (4dBm Max)
*Working voltage: 3.7V
*Working current: 20mA
*Color: Black，Black green