(1) PPTA material, heats up faster and is heated more evenly. It has been tested successfully. (2) Built-in intelligent temperature control chip, three levels of adjustable temperature, intelligent temperature control is more convenient (3) Quick heating in 10 seconds, heating area (4) The heating piece is fixed with Nylon Sticker, which is convenient and fast.IP67 waterproof rating, the switch and handle cover can still work normally even if they are soaked in water. When the handle cover needs to be cleaned, just unplug the plug and then wash it, which is very convenient (5) Working voltage:DC 5V. Operating temperature:-30C - +70C. Product temperature control values:First level (red): 70C; Second level (green): 60C; Third level (blue): 50C (The above data are obtained from experiments, the specific values depending on the Changes in objective factors such as voltage and environment may fluctuate slightly, for reference only). Connection :Connect to USB charging port. USB current:2A or more USB power supply is required Instructions: (1) Working status: The indicator light is always on (: Always on red, Second gear: Always on green, Third gear: Always on blue) (2) Click the on/off key: switch gears and turn on/off the machine Note: If the positive and negative poles are connected reversely, the switch cannot be used and the electric heater will heat directly. pay attention: [1] Please select the appropriate gear according to the ambient temperature. Under low temperature conditions, if you cannot accurately sense the temperature of the electric heating handle in time due to numbness in your hands, please use the low or medium gear first to prevent high temperature . [2] This product can be plugged into the USB charging port on the car. Before installation, you can power on to test whether the product is powered on normally. [3] It is strictly prohibited to operate with electricity (empty heating) when not riding, to prevent the electric heating handle cover from being overheated and damaging the old handlebar. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:Black Material:Metal heating film+PPTA wear-resistant cloth Size:Heating piece:13.5cm long and 10cm wide; length from heating piece to switch is 104CM Package Contents: 1 * Electric Heating Handle Grip Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.