Fit & Design: Lightweight and comfortable Batteries fit neatly into discreet and easy-to-access pocket on back of the glove Heats entire length of each finger as well as the thumb and back of the hand Heating system made of ultra-fine composite fiber built-in to evenly distribute hours of heat Technology: Powered by two ultra-slim 7.4 volt 2,200 mAh rechargeable Li-poly batteries Touch-button temperature control with 3 heat settings Additional Details: Two ActionHeat Everyday Gloves Two Rechargeable 7V Batteries One Instruction Manual Heating time: high (red) - 150F 2+ hours Heating time: medium (white) - 130F 3+ Hours Heating time: low (blue) - 110F 5+ hours