[SMOOTH HEAT THERAPY] Featured with fast heating technology, this electric heated hand warmer provides extra warmth within seconds, promoting blood circulation, relieves muscle tension, Raynaud's & plantar fasciitis. Provides sufficient continuous heat to maintain a constant temperature. Only the body keeps in touch with the heating pad, your body will feel much warmer through penetrating heating. The product need plug in to work. The auto-off feature would cut the power off after 45minutes or overheating. [MULTI-PURPOSE DESIGN] Zipper design allows it to be used in many ways: when zipper is closed, it becomes a warm glove / arm warmer / elbow warmer / knee warmer or a heated pillow. When zipper is opened, it can be used as a heating pad / back cushion / cushion. [CONVENIENT DESIGN] With built-in USB cord(1.8 Meters) and storage pocket, it convenience to be powered by your power adapter(not included) or your power bank(not included), no worry about a power outage, allow you to connect electricity from computer / wall outlet / car or any plug with USB port around you. It is compatible outdoor activities like camping, hiking or watching sports events in a stadium. Weighing only 0.7lb, lightweight and portable, easy to carry and use outside. [SUPER COZY HAND HEATER] Both sides are made of ultra-plush micro mink and filled with lightweight poly-fill, the plush inside offers extra comcompatiblet to your hand while the thick plush cover prevents heat loss and keep you warm anytime anywhere. [EASY CLEAN & OPERATE] Produced by premium heating materiel, the hand warmer can be machine washed. Operated with one single silicone button, it is friendly even compatible elder people. Good gift idea compatible parents, grandparents, lovers, friends and yourself. If product has any problem, please feel free to contact us, we will provide the solution until you are satisfied.