What are the materials for car key covers that do not affect signal transmission?

[DiBrantley]

Car key covers can be made of silicone or leather materials, and it is advisable to avoid metal key covers. Below is an introduction to remote car keys: 1. Advantages of remote keys: Remote keys allow users to lock and unlock their cars from a distance without inserting the key into the keyhole. The biggest advantage is that, regardless of day or night, users can conveniently lock and unlock their cars from a distance without needing to locate the keyhole. 2. Principle of remote keys: The key emits a weak radio wave, which is received by the car's antenna. The electronic control unit (ECU) then identifies the signal code, and the system's actuator (motor or electromagnetic coil) executes the locking or unlocking action. The system mainly consists of a transmitter and a receiver.