Bluetooth Specification: V1.2 Operation Range:10 meters Talking Time: 6Hours Standby Time: 100 hours Weight:20g Item Size:53.5 X 53 X 22 (mm) Charging Time: 2-3 hours Transmitter Power:class 2 - Update: 2007-07-05

Bluetooth Specification: V1.2 Operation Range:10 meters Weight: 15g Talking Time: 6 hours Standby Time: 200 hours Charging Time: 2 hours Transmitter Power:class 2 Item Size:65 X 58.5 X 23.5 (mm) - Update: 2007-07-05

Bluetooth Specification: V1.2 Operation Range:10 meters Item Sizei??65A?25A?22mm Colori??Black Weight:20g Talking Time: 6 Hours Standby Time: 110 hours Batteryi??Built-in rechargeable lithiium battery Charging ... - Update: 2007-07-05