Parameters: Input voltageDC/AC 12V~24V Radio Frequency:433Mhz 433.92MHz Codes: Working with any fixed and rolling code remote control Working temperature: -20~70 Programming: press and hold the learn button on the receiver few seconds. Then hold and press the remote control button to programming. Delete code: Press and hold the delete code about 20 seconds. Checklist before using the device Your smart phone or tablet has connected to a2.4g WiFi with internet. You need to enable Bluetooth of the phone.You have the correct WiFi PWD. You have the correct WiFi PWD. Your router is MAC-open Product details 1. Learning button 1 2 2.Jumper cap 3. RF indicator 4. Power indicator 5. WiFi indicator 6. WiFi module 7. Input port: AC / DC 12-24V 8. Output port 9. Antenna Purchase options Option 1: 1x Receiver (AC/DC 12-24V) Option 2: 1x Receiver (AC/DC 12-24V), 1x Controller