Can work for nearly 2 hours when fully charged. The USB charging design allows this product to be charged anywhere, suitable for home and travel.Unique Night Light Design The thoughtful night light design helps you see small lint. The ring-shaped auxiliary light effectively expands the irradiation area, illuminates small fabric balls that are difficult to detect on the surface of the clothing, and catches all thick and thin balls. The 2-speed shaver powerful motor rotates at high speed up to 8,000 rpm. The stainless steel micro-arc honeycomb mesh cover flexibly adapts to the surface of the clothing while handling fine and coarse hair balls. Removes only superficial hair balls without damaging the clothing fibers.Includes 2 Replacement Blades The fabric lint shaver includes 2 additional blades that are sharp and durable for years of use and can be easily replaced. It easily removes lint, fuzz, and pilling from a variety of clothing and fabrics. Suitable for sweaters, sofas, sweatshirts, blankets.Double Protection Safe cover opening protection: power off when the back cover is opened; front cover protection: power off when the front cover (lampshade) is opened.