This item is a pair of USB heated gloves, adoption of premium and durable material. With this pair of gloves, you can keep warm in the winter. Both indoor and outdoor activities are available. This glove is an gift for friends and family in cold winter, they will like it. Features - Material: Wool. - Size: About 20.00X10.00X2.50 cm/7.86X3.93X0.98 inch. - Voltage: 5V. - Temperature: 40- . - 5V USB powered, low voltage design and safe to use, the USB heated gloves are for desktop computer, notebooks. - Just plug the usb heated glove into a 5V USB port and ready to use. - If the gloves don't gets warm or just one get warm, please unplug the cable, swap and plug it in again. - The cords are long enough that you can put the gloves on and then put your coat on so that no one even knows you are connected to wires. - With this usb hand warmer gloves, say goodbye to cold winter, even though you need work or study front of the computer. Package list: 4 x gloves