Feature: 1. Cold Light Digital Display Screen: The temperature is clear at a glance, safe and visible, and the design of the sticker pet hand warmer adds a cold light digital display screen to make the temperature visible, and the safety is more controllable. 2. 5S Rapid Heating: 5 seconds rapid heating temperature covers the entire body, between the fingers, gradually getting better, the whole body heating body, the heating effect is even, it will be a touch of warm sun in your hands in winter. 3. Charge and Discharge Protection: The intelligent charge and discharge protection circuit should be warm and safe. Support over temperature protection, short circuit protection (automatically cut off battery power supply when the load is short circuited). 4. Multipurpose: Hand warmer is a hand warmer and a mobile power supply, 2400mAh battery, your mobile phone power supply station supports Type C fast charging, fast recycling, lasting heating. 5. Lightweight and Portable: Easy and portable to go out, soft to the touch and comfortable to hold, the shape fits the natural curve, and fits the palm of your hand just to give you comfort and stability, and easy travel. Specification: Item Type: Rechargeable Hand Warmer Material: Hardware, ABS Battery Type: Lithium Battery (Ship with Inbuilt Battery) Battery Model: 18650 Battery Capacity: 2400mAh 3 Level Temperature: The First Level Temperature is 60°, the Second Level Temperature is 50°, and the Third Level Temperature is 40° Charging Time: About 3 to 5 Hours Input: 5V 2A Output: 5V 2A Power: 10W Charging Port: Type C Size: Approx. 6 x 10.8cm / 2.4 x 4.3in. Package List: 1 x Hand Warmer1 x USB Cable1 x User Manual