ObboMed&reg; MH-1000G, Far Infra-red Carbon Fiber Heated Warming Gloves, Half Finger, USB 5V 5W ,&ndash;Laptop, Power Bank, PC, Wavelength 8-15 &mu;m (Health range 4-14 &mu;m)&ndash; universal stretchy Size Powered by 5V low-voltage USB interface. Low power and safe. Uses latest carbon fiber heating technology. Protect your hands from cold weather. Heating temperature up to 109F / 43C. Designed to keep hands warm while working, fishing, studying, playing computer games or relaxing. Detachable USB for more convenience, making them the best way to stay warm at home or on-the-go. Optional AC 110V-230V to DC 5V, 2A USB adapter (not included): <span class="a-text-bold">ObboMed</span> <span class="a-text-bold">PD-0502US</span> 1 x pair of warming gloves with carbon fiber heating elements 1 x USB cable connector (cable length 160 cm / 63 inches) 1 x User&#039;s manual 1 x Color insert Dimensions: Gloves: 15 x 8 cm / 5.9 x 3.2 inches; Heating Area: 10 x 6.5 cm / 3.9 x 2.6 inches Color: Gray Material: Velour and carbon fiber heating elements Working Power: DC 5V, 1A USB Power Current / Watts: 5W The length of USB cable: 160 cm / 63 inches