1) Select the correct setting for remote programming by moving dip switches UP or DOWN. For example, for 433.92MHz remote controls, move Dip-switch 7 UP. 2) Press the learn button. The LED turns on. 3) Press the button on the remote; the LED flashes 4 times, indicating successful programming. 4) Repeat for another button. 5) The second channel programming procedure is the same. To erase all data from the memory: Press and hold the learn button. The LED starts flashing. Keep the button pressed until the LED turns off. All saved data will be permanently erased and cannot be recovered. Color: White Material: ABS 1) Name: Universal receiver SMG-662 2) Operating Voltage: 9V–30V 3) Channels: 2 4) Frequency: 433–900MHz 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: 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, lifting equipment, gateways, and lifting devices. Easy to use, low power consumption, and simple to integrate with existing systems 12) Power Input Selector: Compatible with AC/DC 9V–30V. Adjust the power input selector accordingly. If input voltage is above 24V, short pin 2; if below 24V, short pins 1 and 2 Compatible with: All 433.92MHz fixed code remotes, ATA, ADYX, CAME, CHAMBERLAIN, Mastercode 433.92MHz, ERREKA 433.92MHz, 433.92MHz, 868.3MHz, FAC SLH rolling code 433.92MHz and 868MHz, 310MHz, 390MHz, 315MHz, Berner 868MHz, VDS, PNC, FORSA, ALMA, 868MHz, SOMMER 868.8MHz Package Contents: