Lightweight and Portable: Made of plastic case and high-quality battery, it is durable, and . It has an great touch, it's perfect for indoor and outdoor use, and it's easy to carry. 2 in 1 multi-function: built-in 1800mAh battery, USB interface, this product is not only an electric hand warmer, also a power bank. TWO ADJUSTABLE TEMPERATURE MODES: This pocket hand warmer has 2 temperature modes (It heats up quickly in a second and gives you instant heat. Perfect Gift: The best for cold , perfect for family and , Christmas, New Years or winter. Safety: The optimized circuit extends the lifespan of the pocket hand warmer and provides protection from over-discharge, over-charge, overheating and short circuit. Product name: Hand warming treasure Rated power: 10W Product material: ABS+ aluminum alloy Product color:White Temperature gear: 60 C/second gear 45 C Package Contents: 1 x Hand Warmer 1 x Usb Charging Cable 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.