Warm and Waterproof Material: The Portable Hand Warmer features high-quality windproof cuffs and super soft-touch fleece-lined cuffs to keep hands warm and comfortable and skin-friendly; the outer layer is made of waterproof fabric.Extremely fast heating: Electric hand warmers give you the desired hand temperature in seconds. One-touch quick heating with a portable power bank (not included)Offering 3 temperature settings, the hand heating pad provides plenty of heat to keep your hands warm in cold weather.Lightweight and stylish design: The hand warmer comes with an adjustable shoulder strap that can be easily adjusted to the height you need without you needing to hold a hand warmer bag in your hands.Small pocket storage: There is a hidden switch button on the front of the electric hand warmer, a power bank storage bag is designed to easily store your power bank in the pocket, and it is equipped with a USB electric heating plug for easy insertion Power bank and ready to use; zippered storage pocket on the back of the hand warmer to store your phone, earphones, keys and other items.Perfect Gift: Electric Hand Warmer is the perfect gift for family and friends for Christmas, birthday or special holiday, make them feel different and keep warm in cold weather.