Features: 1. Fast Heating: This rechargeable hand warmer heats up quickly in a few seconds, to meet your different needs. 2. Use As A Power Bank: Hand warmer built-in large capacity battery, which can fully charge mainstream digital devices on the market. 3. USB Interface Design: Can be charged via your PC, power bank, or car charger, with automatic power off when overcharged protection, over discharge protection, it is safe to use. 4. Thoughtful Gift: Adorable hand warmer is a must-have for you and your lover in the upcoming cold winter, it is an excellent birthday gift or holiday gift for children, friends, or family. 5. Wide Application: Great for outdoors, winter sports, skiing, at home, gift-giving, travel, work, hunting, sports, fishing, hiking, camping, and biking. Specification: Material: Plastic Product Color: Pink, White, Blue Product Size: 9 x 8 x 3cm Product Weight: 100g Package Included: 1 x Hand Warmer Power Bank