Features 1、The product uses graphene to heat, which is safer and can be used with confidence. 2、It heats up quickly in 1 minute, and you needn't wait for warmth, it can heat immediately after power on. 3、You can control the temperature in three levels and it can be adjusted at will to meet different needs. 4、It is small and exquisite, foldable, easy to carry for travel, suitable for shopping and office. 5、Adopts universal USB interface and it comes with 1.2m extension cable, more convenient to use. 6、It can be washed at will and it is dirt‑resistant, you do not need to worry about hair loss. Specification Condition:Brand New Item Type: Hand Warmer Material: Flannel, Graphene Size: Approx. 28 x 19cm/11 x 7.5in Rated Voltage: 5V Rated Power: 8W Heating Temperature: red 55℃, white 45℃, blue 35℃ Instructions: 1. Unzip the back zipper and connect the USB plug to the power bank 2. Long press for 3 seconds to turn on, short press to switch gears, long press for 3 seconds to turn off 3. You can also use 1.2m extension cord 4. Put your hand into the pocket on the back of the product. Package List 1 x Hand Warmer 1 x USB Extension Cable