1. Material: PC 2. Size: 92 x 23 x 31mm 3. Battery: 3.7v / 750mah 4. Power: 0.5w 5. Run time: 6-10h 6. Weight: 49g 7. Charge way: usb 5v/1A 8. Waterproof level: IPX6 9. Charging instruction: red light when chaiging,no red light when fully charged.charging time is around 2.5h
