Brand new, unused. ・Product Description 【5 Water Flow Modes & Deep Cleaning】No matter how carefully you brush your teeth, you can only remove 50% of oral debris. This water flosser features 5 pressure modes: "Strong," "Normal," "Soft," "Pulse," and "Child." The "Soft" mode is recommended for beginners and those with sensitive gums, minimizing stress on the gums. Furthermore, with a high pulsation frequency of 1500-2500 times/min, it removes 99.9% of stubborn debris from between teeth and around orthodontic appliances! This single device meets a wide range of needs, from beginners to advanced users, making daily oral care more comfortable and effective. 【4 Nozzles & 360° Rotation for All-Around Cleaning】Equipped with a 350ml super-large capacity tank, sufficient for one use per fill! It also includes 4 nozzles (Standard * 2, Tongue Cleaner, Orthodontic), each designed for different purposes. The 360° rotating nozzle allows for thorough cleaning of hard-to-reach areas like molars and the back of teeth; the tongue cleaner nozzle removes tongue coating and greatly helps prevent bad breath. The orthodontic nozzle effectively removes stubborn food particles around orthodontic wires, keeping the mouth clean even during orthodontic treatment. This multi-functional design combines these features in one device, meeting various oral care needs and making daily care more comfortable and effective. It is especially ideal for those undergoing orthodontic treatment and those who prioritize periodontal disease prevention, providing total oral care. 【Large Capacity Battery & Convenient USB Charging】This oral irrigator is equipped with a 2000mAh large-capacity battery, achieving the industry's first "up to 30 uses on a single charge." It is USB rechargeable, fully charging in 3 hours, and can be used continuously for about 45 minutes. With IPX7 waterproof performance and passing a 1.5m drop impact test, it can be used safely in the bathroom or while traveling.