100% Polyester Imported [SAFE 5V USB POWER SUPPLY] : Powered by 5V USB, this low voltage design is easy to use. The USB gloves are compatible with desktop computers, notebooks, 5V=1000 MA power banks, and 5V=1000 MA car chargers. Simply plug the USB heated gloves into a 5V port to start using them. If the gloves do not warm up, or if only one gets warm, please unplug the cable, swap it, and plug it in again. The cords are long enough to wear the gloves comfortably under your coat, keeping the connection discreet. Thank you for your understanding, and have a nice day! Package Includes: 1 Pair Of Heating Gloves [DOUBLE-SIDED HEATING] : These heated gloves feature heating pads on both sides, providing warmth not only to your palms but also to the backs of your hands simultaneously. The USB rechargeable gloves ensure a faster temperature rise, evenly warming your hands all around. This heating pad is made from durable and effective far infrared carbon fiber. 1 X PC USB Cable