Up to 22 hrs talk time St&-by up to 24 days Weight Approx. 121 grams without clip Speaker Power Up to 104 d B Up to 2.0 Watt Operation range Up to 10 metres DSP for noise reduction & echo cancellation 3 Programmable numbers by end-user or pre programmed for carrier favorite number Dual colour LED to state the status of charge end of charge low battery st&-by & communication Full duplex Flat panel speaker doesnt block visibility when driving 6mm thin in speaker area Installation free Can be mounted on car sun visor or used at home or office Keep your hands & ears free when driving Comes with Bluetrek Tattoo Bluetooth headset Battery Lithium polymer Size 177 mm L x 94 mm Diameter x 14 mm T Introducing a 2 in 1 solution Car kit adapter & Bluetooth headset. Automatic call switch between headset & speaker without hanging up the call. You can have dual use. The Headset alone can be used for private conversations or the headset can be connected to Surface Sound base to become a Carkit. Stylish Flat Panel Speaker provides superior sound quality & ultra slim discreet design. Other features include Voice Alert Notifications Digital Signal Processor charger for the Headset