[3 Cleaning Modes] The mouth irrigator has 3 cleaning modes, including gentle, strong and pulsating. By using it 2-3 times a day, you can prevent tooth decay/gingival atrophy/bleeding gums/dental tartar, etc. [4 replaceable nozzles] 1 x Classic nozzle Suitable for normal daily cleaning 1 x Dental plaque nozzle Suitable for people with periodontitis 1 x Tongue Nozzle Suitable for cleaning the coating of the tongue 1 x Orthodontic Nozzle Suitable for removing food debris in the brace [Water flow rate of 0. 6mm] The water mouthwash can massage your gums and effectively prevent gingival atrophy. [IPX7 waterproof and 220ml water tank] The water jet toothpick is IPX7 full body waterproof and designed with 220ml capacity water tank, which has good service life and is convenient for daily use without a second filling needed; [Portable size, easy to carry] The dental water jet has a portable size (21.8*6*6cm) and it is USB rechargeable. It is very suitable for travel. [Suitable for different groups of people] This dental water jet can effectively reduce food residue, germs and dirt, helping people to improve oral condition to maintain oral health, ideal for people who have a dental implant, or wear braces or retainers; [Use Steps] 1. Fill with water 2. Insert nozzle 3. long press the power button to turn on 4. Put it in your mouth and close your mouth and short press to select modes Name: Dental Water Jet Material: Food Grade ABS White color Size: 28.1*6*6cm Weight: 400g Rated voltage: 3.7V Rated power power: 3.5W Battery capacity: 1200mA Waterproof level: IPX7 Smart power off: support Packing list: 1 * dental water jet 4 * cleaning heads 1 * user manual