What are the methods to enhance car key signal?

[LaHarrison]

You can place the remote key together with your mobile phone to amplify the signal. The specific methods are as follows: 1. Replace the battery: If you feel the signal is not strong enough and the remote distance is relatively short, car owners can also replace the key with a better battery, which can also increase the remote distance. Almost every car is equipped with a remote key, and most car owners use the remote key to unlock or lock the car door. 2. It can be used for 2-3 years: The remote key contains a battery, and the power of this battery decreases with the increase of usage time, so the remote distance of the remote key will become shorter. Generally, the battery of a remote key can last for 2 to 3 years. After the battery runs out, car owners need to replace the battery for their remote key.