High-Efficiency Cleaning: This cleaning brush features a rotation speed of up to 5500 rpm, which is twice the speed of manual cleaning and delivers five times the power of a hand brush, making cleaning corners in your kitchen and bathroom faster, easier, and more efficient USB-C Charging: The grout cleaning brush is designed with USB-C charging, allowing it to be charged through phone chargers, laptops/PCs, cars, or power bank USB ports, providing a faster and more convenient charging experience anytime, anywhere. The rechargeable design eliminates the need for battery replacement, saving both money and effort IPX6 Waterproof: The gap brush meets IPX6 waterproof standards, making it perfect for use in damp environments. It’s an excellent tool for cleaning bathrooms and kitchens, such as washbasins, drain outlets and sink corners Compact & Anti-Slip: This small cleaning brush is compact and easy to handle, yet powerful enough to tackle stubborn cleaning tasks. Its lightweight design helps reduce hand fatigue during use, and the anti-slip grip ensures steady control even in wet conditions 3-in-1 Brush Heads: The rotating cleaning brush comes with four replaceable brush heads, designed for different areas. Two flat hard bristle brushes are ideal for cleaning tiles, sinks, and bathrooms; the pointed brush can reach tight gaps and corners, such as tile seams and faucet edges; the white soft bristle brush is perfect for gently brushing shoes Usage Tips: 1. The electric cleaning brush should not be immersed in water. Please test it on a small area first to avoid scratching tiles or stove surfaces. 2. If not used frequently, it is recommended to charge it every 3-6 months to extend battery life. 3. For safety, do not use the cleaning brush while it is charging