This footwarmer offers convenient remote control operation, no wires or external batteries. And up to 2500 hours of toasty heat to warm cold feet.
12 13 Inch (Mens)/13.5 14 Inch (Womens)
Uses high tech wireless thermal technology no wires, extension cords, Velcro Straps or battery
Lithium ion polymer batteries embedded in the foot warmer insoles are rechargeable
Adjustable to three temperature settings to warm cold feet by remote control: settings are no heat,
can be recharged up to 500 times using the charger that is included