Specifications: - Distance: 50-150 meters - Mini size: 5.5cm x 4.5cm x 1.0cm - One receiver supports up to 400 codes - Does not interfere with other remotes and receivers - Equipped with 8 dip switches for multiple combinations - Power input: AC/DC 9V~30V - Adjust power input selector based on voltage: short pin 2 if input is above 24V; short pins 1 and 2 if input is below 24V - Color: white + black - Material: ABS Programming a new remote: 1) Set the desired dip switch configuration (UP or DOWN) according to the remote brand. For example, for 433.92MHz remotes, set Dip-switch 7 to UP. 2) Press and release the learn button. The LED will turn on. 3) Press any button on the remote. The LED will flash four times, indicating successful programming. 4) Repeat steps for additional buttons. 5) The second channel follows the same programming process. Erase all memory: 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 Controls Note: - Only the items listed are included; other accessories are not part of the package - Lighting and display differences may cause slight color variations between the image and actual product - Measurement tolerance: +/- 1-3cm