Product Description Just because paddle is played in the winter, doesn't mean that you need to have cold hands while you are doing it. The eVortex with it's patent-pending Hot Hands technology will keep your hand warm for up to 2 hours on a charge. It has a rechargeable battery that can be recharged with a standard micro USB cable (the kind used for many electronics). The handle can be heated up to 50 degrees over the outside temperature. There is also an on/off button so you can turn it off if not needed. Weighing in at 365g and head light, it's a paddle you'll want to use whether it's warm or cold outside.