Specifications: - Distance: 50-150 meters - Mini size: 5.5cm x 4.5cm x 1.0cm - One receiver supports up to 400 codes - No interference with other remotes or receivers - Equipped with 8 dip switches for customizable remote combinations - Input voltage: AC/DC 9V~30V - For input above 24V, short pin 2; for input below 24V, short pins 1 and 2 - Color: white + black - Material: ABS Programming a new remote: 1) Set the correct dip switch configuration (UP or DOWN) according to the remote brand. For example, for 433.92MHz Marantec remotes, set Dip-switch 7 to UP. 2) Press the learn button. The LED will turn on. 3) Press the remote control button. The LED will flash 4 times, indicating successful programming. 4) Repeat step 2 for additional buttons. 5) The second channel follows the same programming process. Erase all memory data: Press and hold the learn button until the LED starts flashing. Continue holding until the LED turns off. All stored data will be permanently erased. Compatibility: Works with all 433.92MHz fixed code remotes Package Contents: 1 x Receiver 3 x Remote Control Note: The package includes only the items listed above. Other accessories are not included. Due to lighting effects and display variations, the actual color may slightly differ from the image. Measurement tolerance: +/- 1-3 cm