1、Pocket size hand warmer, can be held in hand conveniently, and easy to carry around. 2、Supports 2 levels of adjustable temperature: level 1--50-55℃, level 2--55-60℃. 3、3s quick heating, no need to wait for warmth, warm your hands fast and safely. 4、Built in 1500mAh large capacity lithium battery that can be charged via Type-C input port quickly. 5、With colorful light effects on the surface, the hand warmer is a great gift for friends and colleague. Features: Pocket size hand warmer, can be held in hand conveniently, and easy to carry around. Supports 2 levels of adjustable temperature: level 1--50-55℃, level 2--55-60℃. 3s quick heating, no need to wait for warmth, warm your hands fast and safely. Built in 1500mAh large capacity lithium battery that can be charged via Type-C input port quickly. With colorful light effects on the surface, the hand warmer is a great gift for friends and colleague. Specifications: Color: Black/ Blue/ Pink(optional) Material: ABS + Aluminum Alloy Temperature: level 1--50-55℃, level 2--55-60℃ Item Size: 7.8 * 3.85cm/ 3.1 * 1.5in Item Weight: about 100g/ 3.5oz Packing List: 1 * Hand Warmer 1 * USB Charging Cable 1 * Hand Warmer 1 * USB Charging Cable