Keychain belongs to the general commodity category in the business scope approved by the market supervision bureau. The key lanyard belongs to the general commodity category in the business scope approved by the market supervision bureau. Keychain braided rope can be hung around the neck to prevent the key from being lost.

The rope of the car key chain is to string the key chain together to prevent it from falling. It can also be used for decoration, and it is convenient to play in your hand, and it is also convenient to find the key.

Key main purpose

Keys are mainly used for unlocking, so you must take care of your keys at ordinary times and don't give them to people you don't trust. Besides, if we want to protect it, I will lose the key and finally put a spare key at home. The function of car keys is to use remote control or alarm device. After pressing the button, the car horn will sound and the double flashing light will flash.

It's convenient to find your car quickly in a crowded place. Close the window after turning off the car key, which saves the trouble of restarting the car. After the flameout, I found the window open. Usually I will restart and then close the window.

In fact, such continuous ignition and flameout is also a burden to the engine, which will shorten the life of the engine. This situation can be solved by remote control key. After getting off the bus, you can close the four windows remotely by pressing the lock key, which is a very convenient and frequently used function.