Large and Easy-to-Clean Water Tank: water flosser's 320ml reservoir allows for uninterrupted dental flossing without the need to refill water frequently. The tank is easy to clean thanks to its open and detachable design. Additionally, the device features an internal leak-proof drainage design for a safe and comfortable experience, which can also extend the lifespan of the flosser. Efficient Gum Health and Teeth Cleaning: The cordless water flosser features a high-pressure water pulse of1400- 1800 times per minute, along with 4 jet water flossers and a 360 rotating long nozzle. It can powerfully clean 99.99% of food debris and plaque in hard-to-reach areas that traditional brushing cannot reach. Customizable and Convenient Cleaning Modes: The cordless water flosser offers three cleaning modes - Normal, Soft, and Pulse - with a low-noise design to meet various oral cleaning needs. The device also features a memory function that automatically remembers the last mode used, even when the flosser is turned off, for convenient and consistent use. Long-Lasting Battery with USB Cable: The cordless water flosser features a built-in, high-tech lithium battery that can last up to 20 days of continuous use on a single charge. The device comes with a USB cable and charger adapter for easy and convenient charging. Portable Cordless Water Flosser with Tips Box: This water flosser is cordless and portable, with a storage bag and extra tips box for easy transport. It can be used at home, in the office, or while traveling, and charges conveniently via USB on a power bank or table.