The Jabra BT2040 battery operated bluetooth headset never needs charging. On just one battery the Jabra Communications bluetooth headset lets you talk for up to 660 minutes. Keep it on standby for up to six months! Save power with the automatic sleep mode and auto pairing. Compatible with all BlackBerry models and most bluetooth enabled mobile phones. Uses 1 AAA battery. The Jabra BT2040 Bluetooth headset can be worn both with the included hook over the ear, or in the ear without the hook. Jabra BT2040 weighs just 16 grams. * Headset, Handsfree * Bluetooth 2 compatible * Talk Time (maximum) up to 11 Hours * Standby Time (maximum) 6 months or 4,320 Hours * Range (feet/meters) - 33/10 Included is the headset + 2 AAAA Battery's.