HighlightsMade of prmium modal core yarn, absorbent, breathable, elastic thickened, super soft and cozy.Long press to activate temperature setup, then short press to adjust your preferred temperatureRemove the 2 battery packs, put the plug in the sock pocket and put them in the laundry bag before washingKeep standby for up to 7 hours after fully charged for 3 hoursThoughtful gift for family, friends, lovers and colleagues.SpecificationType - Foot WarmersWeight - 0.5Max Heat - 149Details*Features