Weight:9.8 grams Dimensions:41*24.5*13.5mm Interfaces:Bluetooth v 2.0 specification with EDR, Handsfree 1.5 and Headset 1.1 profiles Headset and handsfree profile supported Talk time:Up to 6hours by rechargeable battery; up to 11hours by standard battery Standby time:300-1200 hours Removable ear-hook fits either ear. Fashionable and stylish design. Compatible with various Bluetooth enabled devices such as mobile phones, PDAs and Laptops. Friendly user's interface. Noise suppression, echo elimination and duplex sound for crystal clear quality calls.