The product switch has a built-in intelligent temperature control chip with six levels of adjustable temperature. Intelligent temperature control is more convenient and can be adjusted to the corresponding temperature according to personal preferences.The product has added a memory function, which can maintain the optimal temperature last adjusted when turned on at any time, which is more considerate and convenient.The product is specially designed with a neutral function. When the switch is adjusted to the neutral position, the white light will light up for 5 seconds and then flash 5 times to automatically shut down. It will not consume battery power and is and more convenient to use.The product adopts a large heating element, which has a large heating area and a fast heating speed. It heats up in 10 seconds, so that your hands will no longer be cold in the cold winter.The product adopts IP67 waterproof level. Even if the handle cover is soaked in water, it can still work normally. When the handle cover needs to be cleaned, you only need to unplug the plug and it can be washed, which is very convenient.The product can be directly plugged into the USB port. It can be powered on and used without wiring. It is easy and quick to operate.[Working voltage]: DC 5V[Product line length]: 111cm (excluding switch, manual measurement, there will be a certain error, please refer to the actual situation)[Working ring mirror temperature]: -20C--+50CWorking status: The indicator light is always on (: red 100%; second gear: orange 90%; third gear: yellow 80%; fourth gear: green 70%; : blue 60%; sixth gear: white 0% ;)Note: Due to different production batches, there may be slight differences in products.Colour:BlackMaterial:metal+clothPackage Contents:2 x Handleheating piece 1 x switch+wireOnly 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.