A universal car side mirror auto-folding device is an accessory that can be installed on a car to automatically fold the side mirrors when the vehicle is parked and then unfold them when the vehicle is started.The device typically consists of a device that are attached to the mirror housings, a control module, and a wiring harness. When the car is parked and the ignition is turned off, the control module sends a signal to the motors to fold the mirrors inward. When the car is started again, the mirrors automatically unfold.Universal car side mirror auto-folding devices are designed to be compatible with a wide range of car makes and models, making them a convenient and easy upgrade for many drivers. However, it’s important to make sure that the device is compatible with your car before purchasing and installing it. Some devices may require professional installation or modifications to the car’s wiring or mirror housings, so it’s important to read the installation instructions carefully and follow them closely.