Features: Experience portable warmth with this USB heated foot warmer, featuring safe low voltages heating technology that prevents overheating and ensures efficient heat distribution for on the go comfort. Crafted from soft flannel composite fabric, this electric foot warmer offering exceptionally comfort and energy efficiency, consuming minimal power to reduce electricity costs while providing consistent heat. Ideal for seniors, pregnant women, and adults seeking gentle warmth, this USB warming pad caters to sensitive users needing reliabled heat for daily activities. Perfect for office desks or home settings, simply connection to a computer or power adapter to enjoy instantly heat, making it a versatile companion during cold weather. Beyond warming feet, this USB electric foot warmer can be used to heat other body areas, delivering all around comfort and convenience for a cozy winter experience. Specifications: Component: flannel composite fabric, which is light, soft, comfortable Support heats at a constant temperature (40°C), bringing comfortable warmth to your feet Power Supply Port: USB For various charging devices, such as adapters, mobile power supplies, car USB interfaces, computers connection Package Includes: 1PC USB heated foot warmer note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.