Specifications: 1) Distance: 50-150 meters. 2) Very small size: 5.5 cm x 4.5 cm x 1.0 cm. 3) One receiver can process 400 codes. 4) Does not interfere with communication with other remote controls and receivers. 5) Brand selection: 8 DIP switches allow users to combine remote controls of different brands. Power input selection: The receiver can be powered by 9 V to 30 V AC/DC. However, you should change the PIS according to the power consumption. If the input voltage is higher than 24 V, short pins 2 and 3. If the input voltage is less than 24 V, short pins 1 and 2. Color: White + Black Material: ABS Programming a New Remote Control 1) Select the correct brand of remote control to be programmed by moving the DIP switch up or down. For example, for a 433.92 MHz remote control, simply move DIP switch 7 up. 2) Press the learn button. The LED will light up. 3) Press the button on the remote control. The LED will flash 4 times. This means the remote control has been successfully