Features: The electric heating slippers are made of PU leather surfaces and flannel inner lining. The surfaces waterproof, dust-proof and easy to clean. The sole anti-skid and wear-resistant, soft and comfortable to wear. Carbon fiber heating technology, rapid heating, uniform heating, safe and healthy. Three speed adjustable temperature, with intelligent-protection, without preheating. Low voltage drive, easy plug in and out, power can be supplied by using the charging bank and mobile phone plug. The temperature slightly lower when using the computer USB port; When using the mobile power supply, the capacity shall not be less than 10000mA, otherwise it may not be able to move; Please use 5V2A adapter or mobile phone charger socket when charging with charger. It applicable to office workers who are sedentary, people who are afraid of cold, middle-aged and elderly people, and students. Solve the problem of cold feet. On Mother's Day, Thanksgiving Day, Christmas Day and New Year's Day, the foot warmer a thoughtful and comfortable gift for your mother, father, children and friends. Specifications: Fabric: PU-Leather Inside: Flannel Rated-Voltage: 5V2A Model: Dark-Grey S/Dark-Grey M/Pink S/Pink M/Pink L Dark-Grey S (size 42-43) Sole Length: Approx. 28cm/11.02inch Dark-Grey M (size 44-45) Sole Length: Approx. 29cm/11.42inch Pink S (size 36-37) Sole Length: Approx. 25cm/9.84inch Pink M (size 38-39) Sole Length: Approx. 26cm/10.24inch Pink L (size 40-41) Sole Length: Approx. 27cm/10.63inch Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Electric Heating Slippers