Note   1. You had better close most of your mouth to avoid the water spray off.   2. Please choose the soft mode when you use it at the first time.   3. If your teeth are sensitive, please use warm water, it will be more comfortable.   4. You need to charge the water flosser for 4 hours before first time use.   5. Change new nozzles every 3 month is healthier   Specifications   Water Proof:IPX7 Dual Waterproof   Water Tank:220ml Open Water Tank   Work Mode:Normal, Soft,Pulse   Pulse Frequency:1200-1600 times/min   Water Pressure:30-130PSI   Battery:1200mAh Lithium Battery   Deep Clean by TINTON LIFE Dental Oral Irrigator   30-130psi for virous people   If you are new user of water flosser, please choose soft mode until you get used to the water flosser   3 Cleansing Modes   WEAK: Standard Water Pressure for Experienced Userd   Strong: Gentle Water Pressure for New User and Sensitve Teeth   Pulse: For Deeper Penetration, massaging gums and rinsing between teeth and gums   Easy to Use   1.Fill water   2.Inset the tip   3.Long Press 3s the Power Button to Turn on(off)   4.Short Press the Power Button to Select suitable Clean Modes   3 pieces Classic Tips   For Daily clean, ultra-fine pulsed water flow, not only uses the force of water to floss the teeth, but it massages gums and feels great while getting all the food particles out of your teeth.   1 piece Orthodontic Tip   Great for people with braces and orthodontic appliances. It can be very difficult for people with braces to use dental floss around the wires of their braces. The irrigator's orthodontic tip makes it easier to get to those hard-to-reach areas.   Big Water Tank   water pick with 220 ml open water tank design which make you easy fill water and clean after use.   Gravity Ball Design   Built-in innovative gravity ball, flosser can be used normally at any angle.