Check the listing for details. Wireless DC12V 4-Channel Remote Control Receiver Switch with Transmitters. Condition: New. Listed at 29.24 USD. Document Features Transmitting Frequency: 433MHZ Small volume, stable performance, high receiving sensitivity. Compatible with 2262/2260/1572/2240 chips etc, it enables to work with most remote transmitter(remote control). Good Wireless RF Signal, it can pass through walls, floors and doors, control receiver from any place within a reliable distance. Apply for electrical control equipment such as anti-theft alarm, remote control electric door and window, signal control, industrial control, lifting equipment. Specification Encode Intelligent learning Channel 4-channel Working Mode jog, self-locking, inter-locking Working Voltage DC12V Static Operating Current ≤6mA Working Temperature -40℃~+80℃(-40℉~+176℉) Receiving Sensitivity ≥-105dBm Operating Frequency 433Mhz Output Current ≤10A Key 4 key Transmitter Color Black Receiver Board 68mm×48mm×16mm/26.77"×18.90"×6.30" Including Shell 72mm×53mm×26mm/28.35"×2.0.87"×10.24" Pairing Method Connect power, press the learning key on receiver for one second, indicator on receiver becomes being on. Then immediately press the key you want to learn on remote control. After that, the indicator on receiver will flash several times then become off automatically, at this time pairing transmitter and receiver is complete. Clear Code Connect power, long press learning key on receiver for about 8 seconds until the led light on receiver flashes continuously, then release. At this time, code clearance is complete. Note The receiver can learn fixed code(PT2262,SC2260 chips etc.)/learning code(EV1527,HS2240 etc) total 20 code. If codes of any key of remote exceed 20, the receiver will clear the code of the earliest learning in turn. Attention When switching working mode, please must clear code before learn code . Package 1 × Receiver 2 ×Transmitters 1 x English Manual