Packing list:
1* Calculus Remover
2* Working Tips
1* Mini Wrench
1* Charger Cord
1* User Manual

Warm prompt:

Real ultrasonic scaler:
1.It will resonate when it touches a hard object, and it will automatically stop when it touches a soft gum.
2.No noise.So this ultrasonic scaler only works when it touches hard things such as teeth. If you use it on your skin, it won't work.There is no vibration of item body.