Open-end design allows your fingers moving easily De-frosting your hands for gaming, typing and mouse controlling 100 hours of continuous large (leading) continuous temperature heat low power consumption, high security, both energy conservation and security. Connects USB port individually,Removable heating pads,when you not want to heating,you also can move the cable ,take it as normal fashion gloves Works under any device with USB port, e.g. PC, Mac, PlayStation 2 or Xbox360 One size fits all,Open-end half finger design with cover flap Specifications: operating voltage: 5V ± 0.5 current work: only a single 380mA ± 15mA, the use of safe, USB limited to the maximum 500mA flow the frequency of power: 50HZ temperature range: 40 ~ 50 heating time: 1 ~ 3 (min) USB Cable Size:about 1200mm life: 3000 hours (the longest home) Package including: 1 pair of Glove 1 USB Cable