100% Quality & After-sales Guarantee Cordless Water Flosser is Certificated by CE/FCC. electric water flossers always offer a 12-months 'replace, don't repair' warranty , if you have any questions, please feel free to and we will get back to you within 24 hours 300ml Large Capacity Detachable Water Tank 300ml Large reservoir is enough to offer you uninterrupted water flows to clean your oral every time without filling in water again and again. Cordless oral flossers adopt new upgraded Leak-proof drain lid and detachable Water Tank can help you eliminate worries, bringing you more clean and comfortable oral care experience. Your Oral Care Specialist Professional cordless water flosser is designed with 360 rotatable nozzle . The oral irrigator can easy access to your entire mouth to clean teeth deeply and clean every corner precisely that traditional brush head can not reach.With 3 deep clean 4 different Interchangeable Jet tips modes, portable water flosser helps you powerful cleaning 99.99% food debris and plaque 3 Modes Memory Function & IPX7 Waterproof dental flosser has 3 different clean modes, Normal, Soft and Pulse modes to meet your oral care needs . AUTO-TIMER design and Internal and external double IPX7 waterproof protection is more safe to use the dental flosser in the shower . Long Battery Lifetime & USB RechargeableIts built-in 1400mAh lithium battery can last up to 30 days once fully charged(only 4 hours). Safe and easy, compatible with any power source with a USB charging cable (not include adapter).