1) Select the correct brand for remote to be programmed by moving dip switches UP or DOWN. For example, for 433.92MHz Marantec remote controls, move Dip Switch 7 UP. 2) Press the learn button. The LED will turn on. 3) Press the button on the remote. The LED flashes 4 times. This indicates the remote control was programmed successfully. 4) Repeat step 2 for another button. 5) Second channel programming procedure: Erase all data from the memory. Press and hold the learn button. The LED will flash. Keep the button pressed until the LED turns off. All saved data 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 Range: 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 or receivers 9) DIP Switch Selector: 8 dip switches allow multiple combinations for different remotes 10) Code Types: Rolling code, Fixed code, and Learning code 11) Applications: Designed to control gate automation systems, burglar alarm systems, electric doors, windows, lifting equipment, gateways, and lifting devices. Easy to use, low power consumption, and simple to connect to existing systems 12) Input Voltage Selection: Compatible with AC or DC 9V to 30V. Adjust PIS according to input voltage. If input is above 24V, short pin 2 and 3; if input is below 24V, short pin 1 and 2 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 displays may cause slight color variations between the image and the actual item. Measurement error allowed is 1-3cm.