Difference between car spare key and master key

First, the appearance is different

1. Appearance of the main key: It is a button, and only needs to press the corresponding button on the key to open the door.

2. Appearance of spare key: It is an ordinary key, which needs to be inserted into the jack on the door before driving the door.

Second, different types

1. Type of master key: It is remote-controlled. It can remotely unlock the door and open the trunk. You only need to press the keys around the car to complete the operation.
2. Spare key type: It is mechanical and it is an ordinary unlocking key.
Third, the performance is different
1. Master key performance: It is wireless remote control. The car's unlocking function is controlled by the wireless transmitter in the key, which is powerful.
2. Spare key performance: It is necessary to insert the keyhole to open the door.