SAVIOR HEAT Heated Socks - App Control, Merino Wool, Rechargeabl

Stay warm safely with smart safety features that automatically adjust heat levels to prevent hot spots. These heated socks deliver steady warmth for skiing, snowboarding, hunting, winter work, hiking, biking, and more. Control them conveniently via Bluetooth app to switch modes, set timers (0-180 minutes), and check battery levels on your phone. An on-sock switch offers quick backup control. Each pair includes 2 rechargeable 7.4V 2200mAh batteries, providing up to 12 hours of warmth on a single charge. They feature quick heat-up and 3 selectable heat levels (104°F / 122°F / 149°F). Made from premium Merino wool, they trap heat, wick away sweat, resist odor, and fit smoothly under boots. They are washable for easy care. The slim fit design is perfect for ski, work, and hiking boots. Available in Unisex sizes S, M, L, XL (US shoe sizes 5-14).