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 has been programmed successfully. 4) Repeat step 2 for another button. 5) The second channel programming procedure is the same. To erase all data from the memory: Press and hold either learn button. The LED will start flashing. Keep the 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 SMG-662 2) Operating Voltage: 9V–30V 3) Channels: 2 4) Frequency: 300MHz – 900MHz 5) Operating Distance: 30–50 meters 6) Compact Size: 5.5cm x 4.5cm x 1.0cm 7) One receiver can store up to 400 codes 8) Does not interfere with other remotes or receivers 9) Selector: Equipped with 8 dip switches to create different combinations for various 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 Selector: This receiver operates on AC/DC 9V–30V. Adjust the PIS according to input voltage. If input voltage is above 24V, short pin 2; if below 24V, short pins 1 and 2 Compatibility: Works with all 433.92MHz fixed code remotes including APRIMATIC, ATA, ADYX, ALLMATIC, AVIDSEN, BENINCA, CAME, CARDIN, CHAMBERLAIN, Mastercode SEAV 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, Berner 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 variations between the item and the image. Measurement error allowance is +/- 1–3cm.