1. Material: ABS+PC 2. Speaker: 10mm 3. Bluetooth: V4.1 ISSC 2008S 4. Charging time: 1.5-2 hours 5. Talk/Play time: 2.5 hours 6. Standby time: 180 hours 7. Battery capacity: 40mAh 8. Size: 30*15*22mm Weight: 3.3g.