Features 1. Multifunctional hand warmer: warm hands, warm shoulders, warm waist, warm abdomen, warm uterus, warm legs, suitable for multiple parts of the body, giving you warm care any-time, anywhere. 2. This hand warmer bag uses high-tech material graphene as the heating body and high-quality polyester fabric, which is soft and skin-friendly, light and warm, stable in performances and long in service life. 3. Rapid heating, large area heating on both sides, long-lasting lock in temperature, help you dissipate the cold, and bring you the most comfortable warmth. 4. Built-in intelligent temperature control chip, three-speed intelligent temperature adjustment, to meet the actual needs of different groups of people, you can choose the most suitable temperature for you. 5. Washing method: washable, lay flat to dry; dry clean, wipe with a rag; do not bleach, do not iron. USB interface settings: power bank, computer, power socket can supply power. Specification Material: Polyester Color: Light yellow, Pink, Blue Size: 42 x 27 cm Weight: 140 g Power input: 5V-2A Rated power: 10W Using time: 6-8 hours Power connection: Power bank Package Include: 1 Hand Warmer(Not Include Power Bank)