THAW Rechargeable Heated Glove Liners keep you moving freely with full, individual finger heating to make sure your hands aren’t stuck in your pockets, touchscreen compatible thumb and index finger, rechargeable batteries and one-touch button controls are easy-to-use and provide up to 4 hours of heat, lightweight and slender to easily fit inside your favorite pair of winter gloves for the coldest days, machine washable to keep them clean and comfortable