Attentions

1. Install the tip and tighten it ;

2. Long press to turn on/off the device;

3. Choose a working mode;

4. The equipment preset 10 minutes automatic shutdown function to prevent overheating;

5. You need to unplug the charging cable before turn it on and use;

6. The device works when it touches a tough thing like teeth and metal,if you use it on the skin or other soft thing,it will not work.