Powerpart Hand Warmer and Power Bank. Quick Charge Compact Design Hand Warmer and Power Bank to Charge Electronic Devices like Smartphones, Tablets and Laptops. Type USB C Socket with adapter to Type USB A. Size: 104 x 49 30mm. Input 5v 2a. Battery Energy 4000mAh (14.8Wh). Heating Temperature 50 - 60 Degrees Centigrade Adjustable. Material: ABS+ Aluminium Body. Weight 150g. Output 5v 2A Heating Power 7-10w