Fieldsheer offers Performance Heated Socks with Bluetooth-enabled technology that provide warmth for up to 11 hours. The socks feature heavy cushioning, breathable fabric, reinforced heel and toe, and arch support for all-day comfort. They have adjustable heat settings up to 135 degrees and can be turned on and off. The battery-powered socks can improve circulation, prevent muscle stiffness, and numbness in cold conditions. Fieldsheer also offers heated insoles with Odorsheer antibacterial construction and moisture-wicking capabilities. The insoles are powered by thin lithium-ion batteries and can be activated through an app or wireless controller. The products are available in various sizes. The Premium 2.0 Merino Heated Socks by Fieldsheer are powered by the Powersheer Micro BT 3.7-Volt Lithium-Ion battery, which provides up to 10 hours of warmth on a single charge. The socks are made of a blend of Merino Wool and other materials, offering comfort and breathability. They have seamless Bluetooth connectivity with 4 heat settings, allowing for complete comfort and control. Fieldsheer has been designing and manufacturing gear for outdoor enthusiasts and workers since 1978. The socks are odor-resistant and moisture-wicking, and they provide a focused heat zone under the toes with 3 distinct heat settings and full calf coverage. Fieldsheer heated socks are equipped with MW Connect™ technology and 4 heat settings. They have slim internal heating elements with heavy cushioning in key areas and a comfortable toe and reinforced heel. The socks can be charged with a universal USB input and have a charge time of 3-4 hours. They are suitable for use with work boots, snowboard or ski shoes, or running shoes. The socks are designed to keep users warm, dry, and comfortable without sacrificing range of motion, style, or performance. The integrated battery compartment keeps the power source in a comfortable position throughout the day. The socks are made of high-performance materials and are suitable for various cold climates. The battery has a Bluetooth enabled comfort contour design and can provide up to 10 hours of heat per charge. It is rechargeable and has a size of 4in x 1.8in x 0.5in. The package includes one pair of premium 2.0 Merino heated socks, two rechargeable lithium-ion comfort contour batteries, and two micro-USB cables. The socks have calf length, L/R design, comfort toe, arch support, heel and toe reinforcement, and no slip features. The battery is UL/CE certified. Replacement batteries are available, and a user manual can be downloaded.