1. Function: Ultrasonic
2. Material: ABS, stainless steel
3. Power: 2w
4. Cable length: 1 meter
5. Size: 47x23x176mm
6. Weight: 88g
7. Battery capacity: 400mah
8. Charging voltage: 5v
9. Charging time: about 120 minutes
10. Use time: about 50 minutes
11. Power supply mode: USB power supply / built-in lithium battery
12. Packing list: host, USB cable, manual
