Ultrasonic Electronic Mosquito Repellent

Product information: 

Product name: Ultrasonic Mosquito Repellent Watch
Product model: M60
Function: sonic mosquito repellent
Input: 5V/0.5A
Output: 34Hz-70KHz
Battery capacity: 80mAh
Charging time: about 30 minutes
Endurance working time: 150 hours
Product color: black .white