Specifications: 1. Bluetooth Version 2.0+EDR specifications, compatible with Bluetooth Versions 1.2 and 1.1 2. Talk Time: Up to 6 hours 3. Standby Time: Up to 150 hours 4. Weight: 8g 5. Range: 10 meters 6. Battery: 80 MA 3.7 V, Lithium Polymer Battery 7. Charge Time: 2-3 hours dimensions：55×18×10 mm 200 PCS /Carton 18 KG/Carton Carton size: 57* 43 * 34 CM.