1.This heated insole can warm your foot in cold winter.
2. It requires three 1.5 Volt AA-batteries.
3. Charge lasts up to 4-8 hours with Working temperature104- 140°F .
4 Very safe and easy to use.
5. Three heat settings so you can select the temperature best for you.
6. Voltage: 3.7V , Current Capacity: 1800mA.
7. Heating wire is protected properly, even heat.
8. Made of high quality electric heat film insole
9.The recharging time is between 3-4 hours according to different capacities of battery,
10. Battery is incorporated into insole, with no dangling cables or unwieldy boxes.
11.Convenient socket located in heel - no need to remove the battery in order to recharge.