1) Select the correct brand for remote to be programmed by moving dip switches UP or DOWN. For example, 433.92MHz Marantec remote controls, just move Dipswitch 7 UP. 2) Press the learn button. The LED will turn on. 3) Press the button on the remote; the LED flashes 4 times. It means remote control was programmed successfully. 4) Repeat step 2 for another button. 5) The second channel programming procedure is as follows. Erase all data from the memory: Press and hold either learn button. The LED will flash. Keep this button pressed until the LED turns off. All saved data in the memory will be erased permanently and cannot be recovered. Color: White Material: ABS 1) Name: Universal Receiver SMGto662 2) Operating Voltage: 9V to 30V 3) Channels: 2 4) Frequency: 300MHz to 900MHz 5) Operating Distance: 30 to 50 meters 6) Compact Size: 5.5cm x 4.5cm x 1.0cm 7) One receiver can store up to 400 codes 8) No interference with other remotes and receivers 9) DIP Switch Selector: With 8 dip switches, users can create different combinations for different remotes 10) Code Types: Rolling code, Fixed code, and Learning code 11) Uses: This receiver is designed to control gate automation systems, burglar alarm systems, electric doors, windows, lifting equipment, gateways, and lifting devices. It is easy to use, energy-efficient, and simple to connect to existing systems 12) Input Selector: This receiver works with AC or DC 9V to 30V. It is recommended to adjust the jumper according to the input voltage. If input voltage is greater than 24V, short pin 2 and 3; short pin 1 and 2 if input voltage is less than 24V Compatibility: Works with all 433.92MHz fixed code remotes including APRIMATIC, ATA, ADYX, ALLMATIC, BENINCA, CAME, CHAMBERLAIN, Mastercode 433.92MHz, DOORHAN, DEA, ERREKA 433.92MHz, MARANTEC 433.92MHz and 868.3MHz, FAC rolling code 433.92MHz and 868MHz, 310MHz, 390MHz, 433.92MHz, 315MHz, Hormann, Marantec, 868MHz, Prastel, 433MHz and 315MHz, VDS, PNC, FORSA, ROPER 868MHz, SOMMER 868.8MHz Package Contents: 1 x Receiver Note: Light reflection and different display settings may cause slight color variation between the item and the image. Measurement error allowed is 1-3cm.