Description
Attentions
1.Long press to turn on/off the device
2.The equipment preset 10 minutes automatic shutdown function to prevent overheating
3.The battery sign will flash while charging,and it will stop flashing when it charges full
4.You need to unplug the charging cable before turn on it
5.The device works when it touches a tough thing like teeth,if you use it on the skin,it will not work