1、2 in 1 Design: Works perfectly as power bank and hand warmer, the pocket size USB hand warmer enables more convenient use in winter. 2、Heating Level: Comes with 2 level heating of 45℃ and 55℃, this rechargeable hand warmer will bring you more warmth and enjoyment. 3、Better Warmth: Conforms to your hand shape and curve, the electric warmer with comfortable surfaces will warm up all your fingers. 4、Practical Use: Very suitable for both indoor and outdoor activities, including but not limited to fishing, hiking, camping and so on. 5、Ideal Present: An excellent gift for lover, children, family and friends on Thanksgiving, Christmas, New Year, birthday and anniversary. 1 x USB Hand Warmer1 x English User Manual1 x USB Cable Item Type: USB Hand WarmerMaterial: Flame retardant ABS material, aluminium sheet, silicone, PC. Battery Type: Lithium ion battery, shipped with built in battery. Battery Model: 217002 Level Temperature Adjustment: 45℃, 55℃. Colour: GreenWeight: 408 g / 14.39 oz(approx.)