1.With this remote control you can use all 433 MHz fixed code key chains. 2.Some remote controls that use this frequency are listed below. 3.4-channel RF Wireless Remote Control Duplicator for Cars, Garage Doors, Gate Doors, alarm systems etc. 4.This is a fixed frequency remote control cloner (433 mhz) for copying common fixed and learning code remotes. Easy to use, the 4 channel remote control allows you to control your gadgets, car, home and garage.Scope of application: It can copy all kinds of wireless fixed code remote controllers and learning code remote controllers. Such as electric telescopicdoor remote control, barrier remote control, alarm remote control, etc. Specifications: Model: HFY408G Type: remote control Rated voltage: 12 (V) Rated current: 10 (mA) Installation method: autonomous Wireless transmitting distance: 150 (m) Color:black silver Package Included: 1 * Door Remote Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow slight dimension difference due to different manual measurement.