Hand Warmer and USB Power Bank: More as a hand warmer, the heat of the hand warmers can promote blood circulation and eliminate fatigue of your body. 3500mAh capacity can give a full charge to most devices.
Good Security: the upgraded circuit completely eliminate all kinds of poor contacts to ensure the lifetime of it. and the integrated temperature sensor provides protection against charging, overheat and short circuit.
Portable and Convenient: Portable shape, light weight. and it comes with a strap for easy carrying that make it more convenient when used.
Large Capacity Battery: 3500mAh capacity can give a full charge to most devices.3500 mAh lithium battery with USB-C charging port, more stable 2A output. Suitable for Android phone, iphone, tablets and other digital device etc.
Product material: aluminum alloy / fireproof ABS / silicone