1) Bluetooth V1.2 compliant(compatible with Bluetooth 1.1) 2) Long talk time: up to 6 hours 3) Stand by time: up to 200 hours 4) Weight: 14.5g 5) Chipset: CSR 6) Radio performance: class II 7) Frequency: 2.4 - 2.4835GHz ISM band 8) Transmitter power: 1mW 9) Output power: 0dBm (class II) 10) Typical charging time: 1.5 to 2 hours 11) Operation temperature: -20 to +60癈