Bluetooth specification: Version 1.2 Bluetooth profile supported: Headset and handsfree profiles Range of frequency:2.4ghz spectrum Nominal charging time: With 2 hours Talk time: Up to 7 hours Standby time: Up to 180 hours Range: Up to 10 meters Rechargeable lithium polymer:180ma Dimension:56 x 24 x 11.8mm N. W.13g g. W.178g With chinese and english guiding brochure, charger and bluetooth earphone