Specifications 1 Range 50150 meters.2 Very mini size 5.5cm4.5cm1.0cm.3 A receiver can work with 400 codes.It does not interfere with other remote controls and receivers.5 Selector With 8 dip switches, user can make different combinations for different remote controls. Power input selector This receiver can work with ACDC 9V30V. However, it is better to change the PIS according to the power input. If the input is greater than 24V, short pin 23, short 12 if the input is less than 24V.Color whiteblackMaterial ABSProgram a new remote control1 Select the correct brand of remote control to be programmed by moving the dipswitches UP or DOWN. For example 433.92Mhz remote controls, just move Dipswitch 7 UP.2 Press the learning button. The LED light will turn on.3 Press the button on the remote control, the LED light will flash 4 times. This means the remote control has been programmed successfully.4 Repeat for another button.The programming procedure for the second channel is the same.Delete all data from the memory card Press and hold either learning button. The LED will start flashing. Keep the button pressed until the LED goes out. All data saved on the memory card will be permanently deleted and cannot be recovered.CompatibleAll 433.92mhz fixed code remote controls.Package contents1Receiver3Remote controlOnly the above package contents, other products are not included.Note Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is13cm.