Features: brand new and high quality Material: The product is made of flannel fabric, and the heating temperature can reach 50-60 degrees Celsius. Suitable for: The temperature rises immediately and is reaching the rated temperature . It is very suitable for families, offices, outdoor walks, camp and more. Power supply: Any 5V USB port can be chargeable, such as charger, mobile power, car and computer USB charging.Charging and heating can be performed only when the power is turned on. Wide use: In addition to keeping warm, it can also effectively relieve pain. It is suitable for low back pain, cold soles and menstruating women. Suitable scenes: home, school, office, car travel, outdoor camp, fishing and more. Specifications: Material: Flannel Constant temperature: 50° C-60° C Size: approx.30x30cm/11.81x11.81in Rated power: 2A Rated voltage: 5V Color: As the picture shown Quantity: 1Set Package Includes: 1xFoot Warmer 1xUSB Cable(other accessories in the picture is not included.) note: Please allow 0-1cm error due to manual measurement. please make sure you do not mind before you bid. Due to difference between different monitors, the picture may not reflect the actual color of the item. Thanks!