6.8 x 3.6 x 1.6cm Pack of 2 Universal Garage Door Cloning Key Fob Remote Control 433 MHz 4 Button Cloner for Garage Door Electric Door etc

This learning keychain allows you to clone 2 additional remote controls for your family or simply to replace them. The 4-button design lets you control up to 4 garage door openers or 4 different key functions. Handy keychain, easily attaches to your car keys, easy to carry. It can copy all kinds of fixed-code remotes with a fixed frequency of 433 MHz (433.92 MHz) (scrolling codes cannot be cloned). Suitable for many types of cars, electric gates, doors, garage doors, and anti-theft alarms, etc.