Discover quality products and enjoy a great shopping experience! Specifications: 1) Range: 50-150 meters. 2) Very small size: 5.5cm x 4.5cm x 1.0cm. 3) One receiver can work with 400 codes. 4) It does not interfere with other remote controls and receivers. 5) Brand selector: With 8 DIP switches, the user can make different combinations for different brands of remote controls. Power input selector: The receiver can work with ACDC 9V~30V. However, it is better to change the PIS according to the power input. If the input is higher than 24V, short pins 2 and 3; short 1&2 if the input is lower than 24V. 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 switches UP or DOWN. For example, 433.92Mhz remote controls, just move Dip switch 7 UP. 2) Press the learning 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 programmed successfully. 4) Repeat step 2 for another button. 5) The procedure for programming the second channel is the same. Clear all data on the memory card: Press and hold one of the learning buttons. The LED will start flashing. Continue pressing the button until the LED goes out. All data saved on the memory card will be permanently deleted and cannot be restored. Compatible brands: All 433.92mhz fixed code remote controls. Package Contents: 1 x Receiver 3 Remote Controls Only the above package contents, other products are not included. Note: Light reflection and different monitors may cause the color of the item to be slightly different from the real thing. The measurement allowed error is +- 1-3 cm.