Savior Heat Winter Heated Socks for Men Comfort with Rechargeable 7.4V 2200mAh Battery, Washable, Ideal for Arthritis Relief, Outdoor Hunting

Advanced Technology of Far-infrared Fiber Heating Elements Covers Instep and Toes Area,great choice for cold winter 3 Intelligent Temperature Control Setting make it easy and safe to adjust your perfect heat Help stimulate poor blood circulation, keeping your feet warm & toasty in seconds Come with USB-DC Charger and 2 pcs 7.4v 2200mah rechargeable batteries allow you to charge them at the same time, about 3-3.5 hours for a full charge Long tube warm socks lightweight,unisex, widely matched, warm and stylish