Features 1. Fast Heating System Design: Heats up in three seconds with efficient graphene carbon fiber heating system. Stay warm even in winter. 2. Soft Material: The heated hand warmer is made of high-quality material, super soft, skin-friendly and durable, creating the largest heating area to provide maximum warmth for the front and back of your hands. 3. Versatile Function: The heated hand warmer is designed for versatile use. Button up to work as hand muff to keep your hands warm; spread out to work as heated cushion or heating pad for knees, legs or stomach to help relieve body discomfort. 4. Machine Washable: Equipped with an extra-long detachable cord, the hand warmer can be easily washed as needed. 5. Easy to Use: Connect directly to your power bank (not included) or use extended cable to plug into outlet, computer, or car charger. You will be able to warm your hands during indoor and outdoor activities, such as night fishing, night hunting, winter golfing, skiing, or camping. Specification Material: Velvet Color: Grey, Yellow, Green, Blue Size: 30 x 50 cm Weight: 200 g Power: 10 W Voltage: 5 V/2A Package Include: 1× Heated Hand Warmer (power bank not included) 1× Cable Charger 1× Dustproof Bag 1× Manual