NEW WITH TAGS/IN BOX DSG Outerwear 5 Volt Rechargeable Heated Sock Premium Wool Women Small/Medium (Shoe Sizes 6-9.5) Gray The DSG women's heated socks are the perfect blend of quality and comfort. These socks come with two super powerful ActionHeat 5V Power Banks (3000mAh). The thin profile batteries fit into a small snap pocket. These heated socks warm from the bottom up with lightweight, flexible panels so you can feel warmth where you need it most. HOW TO USE: Power Up – Charge the provided 5-Volt batteries. Plug-In – Connect the batteries to the USB cords located in the pocket on the top of the sock. Turn On – Press and hold the touch-button control on the sock for 3 seconds. Press button again to cycle through the heat settings. Estimated Heating Times: HEAT BLAST (Red): 150F – 3+ Hours Medium (White): 130F - 4+ Hours Low (Blue): 110F – 5+ Hours NOTE: Recommended to use low or medium settings. Heat Blast should not be used for more than 5 minutes at a time. Material Contents: Material Content: 21% wool/47% Acrylic/15% Nylon/12% Polyester/3% Spandex/2% Rubber Ultra-fine carbon fiber heating panels. Includes: (2) 5 Volt Rechargeable Battery Heated Wool Blend Socks w/ Heated Toes (2) 3000mAh Lithium-Polymer Power Banks (Batteries) (1) 24" Dual Micro-USB Charging Cord Instruction Manual Heated Sock Features Bottom of the feet heating Powered by (2) 3000mAh Power Banks Touch-Button temperature control 3 Heat level settings Heats up to 150°F Lasts up to 5 hours