Check the listing for details. 12V Wireless Remote Control Relay Switch 2CH Receiver Module +RF Transmitter Set. Color: Black, Condition: New. Listed at 21.84 USD. Please note: Puerto Rico countries do not include batteries FeaturesThe product is a general smart receiver and it can be matched with the majority of the wireless receiver in the market, including fixed code （2262, 2260,2264,5326,M1E,M5E etc）, learning code （1527, 2240, 6P20B, 6P20D etc）. roling code （HCS301,HCS300,HCS200,HCS201,HSC100,HCS1O1 etc） and a part of customized remote controller.Products advantage1，Can learn Fixed and Rolling code 433,92Mhz remote controls separately and simultaneously !!!2，2 channel receiver provides you with an option to control and use 2 gate automations or alarm systems simultaneously3，The maximum number of remote controllers stored is 400, which is enough for the entire community to use.4，It's very easy to connect it to your control board. All you need is to connect 4 wires between receiver and control panel. If you will need any technical support - i'm always at your service!SECIFICATIONS:1. Power supply: 12v-24v DC2. Frequency: 433.92Mhz3. Codes: can work with any fixed/learning/rolling codes4. 2 channel5. Working temperature :-40℃- + 80℃6.Built in Aerial antenna : Reception range 10-50mMomentary working modePackage Contents:1 x Receiver3 x Remote ControlPROGRAMMING:1.Learning transmitter’s codes:Press “learn 1” or “learn 2” for 1 second, the “learn_led” light, then, press the button which you choose on the transmitter till the “learn_led” flash and go out, the transmitter’s code has been stored.• Repeat the above steps for other transmitters.2.Erasing transmitter’s codes:Press “learn 1” or “learn2” and hold on to make the “learn_led light till go out, all codes of transmitters which had been stored are erased.Circuit diagramANT - Receiver AntennaCH1 - Relay Output 1CH2 - Relay Output 2V+ - Voltage +GND - Ground