*Bluetooth version: V4.0+EDR
*Transmission distance: 10 meters
*Battery capacity: 75mAH
*Talk time:5-6 hours
*Music time: 4-5 hours
*Standby time: 75 hours
*Charging time: 1-2 hours
*Speaker：16Ω10mW 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: White, white red, white blue, white yellow, white green, white purple, white powder, white orange, black, black red, black blue, black yellow, black green, black purple, black orange.