This portable electric hand warmer is designed for winter sports and outdoor activities. With fast heating, USB interface, and power bank function, it is safe and convenient to use. It can also be an adorable and thoughtful gift for your loved ones. Material: Plastic. Color: Pink. Size: 9 x 8 x 3cm. 100g. 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