1. Your Warmth: With its low-voltage and USB-powered convenience, this rechargeable hand warmer is perfect for keeping your hands warm anywhere. The thoughtful present option adds value to the portable comfort at your fingertips 2. Long-Lasting Warmth: Featuring three heat settings of intelligent adjustment and a digital display for constant temperature control, ensuring your comfort in the cold 3. Graphene Heating Technology: Elevate your outdoor experience with our rechargeable hand warmers, powered by graphene heating for quick heat-up in seconds. Enjoy constant warmth with a leak-proof design and comfortable grip, perfect for any adventure 4. Continuous Heat: Our rechargeable hand warmers provide uninterrupted heat without the risk of , thanks to stable temperature control and double-sided heating. Maintain optimal body temperature and throughout the day 5. Potable and Compact: Experience the ultimate convenience and mobility with our rechargeable hand warmers. Designed with a and portable size, you'll never have to sacrifice warmth for wanderlust again Stay warm all winter long with our rechargeable hand warmers. With a leak-proof design and digital display, you'll always know when it's time to recharge for continuous heat. Perfect for on-the-go warmth and makes a great present option! Name:Hand Warmers Rechargeable Product size:about 41x25.5cm or 16.14x10.04 inches Power supply:USB Input:5V or 2A(Need to be provided by customers) Three-speed temperature adjustment: 37 degrees, 45 degrees, 55 degrees Colour:As Shown Material:polyester Package Contents: 1 x Hand Warmers Rechargeable 1 x shoulder strap Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.