Colour: Gray, Pink; Communication: Bluetooth; Bluetooth Version:2.1; Frequency:2.4 G Hz-2.48 G Hz; Transmitting Power: Ciass 2; Bluetooth Chip:ISSC; Operating Range:10m; Working Voltage:3.6V; Battery:85ma; Standby Time:200 hours; Talk Time:6 hours; Charge Time:3 hours