Talk Time : Up to 6 hours Standby Time : Up to 100 hours Range : 33 feet (10 meters) Headset Wearing Style : Over-the-ear; boom swivels for wearing on either ear Headset Weight : Approximately 1/2 ounce Headset Microphone: Noise-canceling Headset Controls : Volume, mute, call answer/end, voice-activated dialing Headset Battery: Lithium Polymer Wireless Compatibility: Bluetooth (v1.2) devices supporting headset and hands-free profiles Supports Adaptive Frequency Hopping (AFH): Yes Supports Analog and Digital Office Phone s: Yes Headset Available Separately : Yes