*Bluetooth version: V4.0
*Bluetooth chip: CSR 8635 +EDR
*Transmission distance: 10 meters
*Battery capacity: 100Mah
*Talk time: 9 hours
*Music time: 8 hours or more
*Standby time: 360 hours
*Charging time: 2 hours
*Type: single Bluetooth
*Material Science：Environmental protection PVC material
*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、gold