1) Select the correct brand for programming by moving dip switches UP or DOWN. For example, for 433.92MHz Marantec remotes, move Dip-switch 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 step 2 for another button. 5) The programming procedure for the second channel is the same. Erase all data from the memory card: Press and hold either learning button. The LED light will start to flash. Keep the button pressed until the LED light turns off. All saved data in the memory card will be erased permanently and cannot be recovered. Color: White Material: ABS 1) Name: Universal Receiver SMG-662.2) Operating Voltage: 9V-30V3) Channel: 2.4) Frequency: 300MHz - 900MHz.5) Distance: 30-50 meters.6) Very mini size: 5.5cm x 4.5cm x 1.0cm.7) One receiver can work with 400 codes.8) It doesn't interfere other remote controls and receivers.9) Brand selector: With 8 dip switches user can make different combination for different remotes.10) Code: Rolling and fixed code & Learning code.11) Usages: The receiver is designed to control any gate automation system, burglar alarm system, electric doors, windows, lifting equipment, gateways, lifting devices. This is an easy to use, good looking, low power consumption and is easy to be connected to your existing system.12) Input selector: This receiver can work at AC/DC 9V~30V. However, it is better to change the PIS according to the power input. If the input is greater than 24V, shorten pin 2&3; shorten 1&2 if input is less than 24V. Compatible: All 433.92mhz fixed code remotes. APRIMATIC,ATA,ADYX,ALLMATIC,AVIDSEN, BENINCA,CAME,CARDIN,CHAMBERLIN, Mastercode SEAV 433.92mhz, DOORHAN,DEA,,ERREKA 433.92MHZ, MARANTEC 433.92mhz 868.3mhz, FAC rolling code 433.92mhz and 868mhz, 310, 390, 433.92mhz, 315mhz, Hormann and Marantec, Berner 868mhz, Prastel, 433 and 315mhz,VDS, PNC, FORSA, , ROPER 868MHZ,SOMMER 868.8MHZ... Package Contents:1 x Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.