12V Relay 4Ch Wireless Programable RF Remote Control 2X Transmitter + Receiver It is a learning code wireless remote control switch (receiver),the output way /working way can be change as you like ,it is easy to match the transmitter . The AK-RK04S-12 4 channel wireless remote control switch with 4 Relays. It can make the equipment turn or reverse .on/off and so on come true. The volume is small and the performance is stable and reliable ,high receive sensitivity, Application: Auto door, window, lifting equipment, entrance access, up and down controller, alarm system industrial control and security etc. The switch can compatible 2262 /2260/1527/2240 etc chip and several code wireless remote control. So it can meet someone need of choosing the wireless remote control as they like to work with it . Output working way: 1. Self-lock ---connect the JP1 with the cutting out cap. 2. Jog---the cutting-out cap is non-occupation, JP1 and JP2 do not connect either. 3.inter-lock---- Connect the Jp2 with the Cutting out cap, Jog---- press one button is ON . loosen your finger on the same button is OFF .need one channel switch and one buttons remote control ) Self -lock----- press one button for one time is ON .press the same button again is OFF .need one channel switch and one buttons remote control Inter-lock-------press one button is ON , press another button is OFF . (need one channel switch and 2 buttons remote control Learning and remove method: 1. press the learning code .the indicator flash ,loosen your finger ,press any button of the remote control ,the indicator flash 2 times and off .it mean you learn it successfully . 2. it can learn more than 12 PCS 2262 or 1527 chip with the different code wireless remote control 3. remove/clean :press the learning button about 8 seconds , the indicator turn on to off , it means the information that you keep have been removed successfully .