Heated Socks Electric Thermal Winter Tights Foot Warmers UNIVERSAL - socks are universal, the size we can fit is: from 36 to 44. Knee-high socks reaching almost to the knees will warm not only the feet, but also the calves. With these heaters, you can enjoy your hike or ski time on winter days. BATTERIES INCLUDED – two rechargeable batteries were attached to the socks. When connected, you hide them in special pockets at the top of the socks. Charging is done via USB cable. Thanks to the splitter, the cable is adapted to charge two batteries at the same time. MACHINE WASHABLE – socks can be machine washed or hand washed. When washing, remember to remove the battery! When you want to machine wash it is best done in a laundry bag. 3 DEGREE HEATING – socks have a 3-stage heating adjustment (high, medium, low). Heats from 40 to 60 degrees. The wires are arranged on the sole of the feet arranged in the shape of the letter U. With this arrangement of wires, heating is pleasant and even. PRODUCT SPECIFICATION colour: black Size: Universal (36-44) inner material: polyester, outer material: acrylic nylon PBT heating time 4h charging time 8-10 h charging voltage – 5V Battery Capacity: 4000mAh dimension: 30 x 23 x 9,5 cm Weight: 192 g Weight per package: 461g INCLUDED pair of socks 2 x Battery USB cable with splitter These soft, heated socks provide all-day warmth and comfort, perfect for hiking, hunting, ice fishing, and skiing in winter weather. No more cold feet! ADVANTAGES OF SOCKS solve the problem of frozen feet on cold winter days and effectively prevent frostbite heating temperature: max. 60 USB power supply (power bank, charger cube, laptop, etc.) Human-safe 5V voltage even in wet conditions elastic extremely light universal size possibility of washing for various types of footwear for: children, women and men