Portable Oral Irrigator Water Floer Product Feature (1) Streamlined curve shape, beautiful atmosphere(2) Anti-slip design on the back, comfortable to hold without slippery hands(3) 2 minutes timer protection(4) Standard 5 nozzles(5) Type-C type charging interface(6) 300ML large water tank(7) 3 levels of intensity pulsed water flow Product Parameter Battery capacity: 2000mAhCharging time: 4-5 hoursNumber of Modes: 3-speed modeCharging method: USB chargingWaterproof rating: IPX6Rated power: 5WRated water preure: 40-130 PSIRated voltage: 5VPulse frequency: 1600-1800 times per minute Package Include Machine *1Nozzels *5USB Charging Cable *1Manual *1 Note: Pre and hold the power button for 2-5 seconds to switch between strong, weak and pulse modesUse suggestions: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.Please follow the instructions.5. Change new nozzles every 3 month is healthierSpecifications:Water Tank:220ml Open Water TankWork Mode:Normal, Soft,PulseWater Preure:30-130PSIBattery:100mAh Lithium Battery(Can be used for 60 minutes) Packing list:1*Tooth punch1 or 4 nozzles1*USB cable1*InstructionNote:- If you did not receive your order in time, please use to contact me, I will provide you with effective solutions.Thanks for your understandings.- Because the time difference between countries, if sales person is not online,she will reply your email within 5-10 hours. Packing list:1* Calculus Remover2* Working Tips1* Mini Wrench1* Charger Cord1* 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.