Intelligent ultrasonic recognition, the needle will stop vibrating when it touches soft substances such as gums_x000D_. Deeply cleansing power, effectively removes stubborn tartar such as tobacco, coffee and tea stains_x000D_Equipped with LED lighting, easy to use and suitable for beginners and the elderly_x000D_. Made of medical grade stainless steel material and equipped with professional health and hygiene scaling tip design_x000D_. With the dental mirror, you can clearly see the stone on the inside of the teeth and the back molars without leaving a dead angle_x000D_. Automatic shutdown after 10 minutes of use to prevent overheating of the needle.Specifications:_x000D_Item name: DR.BEI YC2 ultrasonic scaler_x000D_.Rated voltage: 3.7V_x000D_. Input voltage: 5V-1A_x000D_. Rated power: 1.8W_x000D_. Waterproof: IPX7_x000D_. Materials: ABS_x000D_ Product dimensions (L x W x H): 22.00 x 3.00 x 3.00 cm / 8.66 x 1.18 x 1.18 inches_x000D_4 Note:_x000D_Actual use may slightly differ depending on the specific situation _x000D_Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same._x000D_Package List:_x000D_1 x Dental Scaler Holder;_x000D_2 x wide head_x000D_2 x pointed cleaning head_x000D_1 x Mouth Mirror_x000D_1 x wrench_x000D_1 x charging cable_x000D_1 x Manual (CN)