Warmth you can rely on in cold weather. The USB Electric Foot Warmer heats to approximately 45 degrees with a tolerance of 5 degrees, helping keep your feet toasty and comfortable even in chilliest conditions. Safe and convenient power. Uses a USB direct power supply with a 5V 2A input. It operates without an open flame, reducing hazard while providing steady warmth. Compatible with standard USB sources such as laptops, wall adapters, and power banks. Comfort and easy care. Crafted from ultrasoft flannel for a comforting feel. The plush exterior is washable, and the inner heating pad is removable for cleaning and hygienic maintenance. Practical design and performance. Simple to use with reliable warmth from a USB power source, offering a safe, convenient way to warm feet during work, relaxation, or travel. Use scenarios At home on the sofa or bed: keep feet warm while watching TV, reading, or relaxing in chilly rooms. At a desk or office: stay comfortable during long work sessions without heating the whole room. While traveling or on the go: plug into a laptop, USB wall adapter, or portable power bank for warmth in transit or in hotel rooms.