Features:1. Portable: The hand warmer is lightweight and easy to carry, you can wear it as a shoulder bag, and the heating function makes your hands warmer and more comfortable in winter.2. 3-speed temperature: 37, 45, 55, press the on/off button to switch, to meet different heating needs. 3. USB powered: The portable hand warmer is powered by USB and has a zippered pocket that can be used to hold a power bank (not included), you can take it with you when traveling, camping, hiking, etc. 4. Soft material Machine washable: Since the electric hand warmer is made of soft polyester fiber, it provides more comfort than others. In addition, it is easy to clean, just hand wash in cold water or machine wash in a laundry bag (not included).5. Thoughtful gift: A stylish and warm gift is a must for you and your loved one during the upcoming cold winter, it is an excellent birthday gift or Christmas gift for children, friends or family. Specification:Material: Polyester fiberProduct color: Yellow, Blue, PinkProduct size: 420 x 270mm Product weight: 140g Battery: 500mAhRated power: 10WInput power: 5V-2AHeating temperature: 37, 45, 55Optional: Silicone push button type, Real-time digital display typePackage included:1 x Hand Warmer Pouch