USB Feet Warmer

PREMIUM MATERIAL: Made of premium material, soft and comfortable WORMWOOD HEATING: Adopted wormwood heating to drive out cold, hot compress to relieve pain, clear damp and cold. ADJUSTABLE: Adjustable temperature( 50℃-60 ℃) button, keep your feet from cold, safe to use, no worry it'll scald hands or feet REMOVABLE: Easy to clean, with the removable design USB POWER INTERFACE: Easy and simple. Can be used charging by computer USB interface, mobile phone power interface, power bank...