... .optional special adapter USB hand warmer gloves, rechargeable hand warmer for PC, convienient carry, save electricity. 1.Cut finger design allows your ... . 3.Glove made of wool and connects individually to a USB port. 4.2 level heating controls, each glove built-in ... 2 warming pad. 5.Works under any device with USB port, e.g. PC, Mac, PlayStation or Xbox 360.6 ...