USB Heating Hands Gloves, Heated Warmer Gloves

* Color Random
* Size: Medium
* Material: cotton
* USB cable length: 5 Feet (1.5 M)
* 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 °C
* heating time: 1 ~ 3 (min)
* life: 3000 hours (the longest home)
* low power consumption, high security and energy conservation.
* easy to use, plug and play.
* No driver needed