Features: Added memory function, can keep the best temperature adjusted last time when it is opened at any time, the product can be directly plugged into the USB port, which can be powered on without wiring. Adopted wear-resistant cloth, heats faster and more evenly, more durable. Uses a large heating plate, fast heating speed, and fast heating in 10 seconds, making your hands no longer cold in the cold winter. Specially designed with the neutral function. When the switch adjusted to neutral, the white light will be on for 5 seconds and then flash for 5 times to automatically shut down. It will not consume battery power. Equipped with an intelligent temperature control chip, can be adjusted in six gears, intelligent temperature control, more convenient and can be adjusted to the corresponding temperature according to your own preferences. Fixed with hoop and loop, easy to install, without damaging the handlebars. IP67 waterproof grade, and it can work normally even if the handle cover is soaked in water. When the handle cover needs to be cleaned, just unplug the plug to wash it. Specifications: Material: Metal, Cloth Package Size: Approx. 12.1x3.6x16.1cm Working Voltage: DC5V Working Temperature: -30 to 70℃ Package Includes: 2x Heater Pad 1x Switch Cable 5x Cable Ties note: Strictly prohibited to work with power on (empty burning) when not riding, to prevent damage to the original handlebar due to excessive temperature of the electric heating handlebar. Please select the appropriate gear according to the ambient temperature. Under low temperature conditions, when the temperature of the electric heating handle sleeve cannot be accurately sensed in time due to hand stiffness, please use the low or middle gear first to prevent scalding due to high temperature.