Specification:  Remote Control Feature:  Product model: FSK-4 key.  Shell material: PC+fiber.  Transmit power: working 40mA/standby 0.1uA.  Launch distance: >200 meters.  Mediation: FSK.  Remote control working voltage: DC3V/2XAA battery (not includes).  Dimensions and weight: 187*60*50mm/230g.  Signal frequency: 433MHz.  Receiver Feature:  Product model: AK-06S-Industrial control DC four-way.  Shell material: PC.  Working voltage: DC12-48V/AC220-380V (optional).  Maximum load: single <=10A.  Mediation: FSK.  Dimensions and weight: 145*100*40mm/250g.     Working mode switch:  2 jog 2 self-locking: Short press the controller learning key once, the controller LED indicator lights up. Then press the A button of the four-button remote control to transmit a valid signal. After the controller receives the signal, the LED indicator flashes to indicate that the code is successfully learned.  Self-locking mode:  Short press the controller learning key once, the controller LED indicator lights up. Then press the B button of the four-button remote control to transmit a valid signal. After the controller receives the signal, the LED indicator flashes to indicate that the learning code is successful. The working mode is that the A.B.C.D keys are all self-locking mode.  Interlock mode:  Short press the controller learning key once, the controller LED indicator lights up. Then press the C button of the four-button remote control to transmit a valid signal. After the controller receives the signal, the LED indicator flashes to indicate that the learning code is successful. The working mode is that the A.B.C.D keys are in the interlock mode.  Click lock mode: Short press the controller learning key once, the controller LED indicator lights up. Then press the D button of the four-button remote control to transmit a valid signal. After the controller receives the signal, the LED indicator flashes to indicate that the learning code is successful. The working mode is A.B.C.D keys are all in jog mode.     Working principle:  Jog mode: long press the remote control button, the controller power output, release the remote control button, the controller power off. Interlock mode: Press the remote control button once, the controller power output, press the remote control button again, the controller power is turned off.  Self-locking mode: Press the 1 button on the remote control once, the controller power is output, and press the 2 button on the remote control again, the controller power is turned off..  Clear code: long press the learn code key on the controller for more than 5 seconds, the LED indicator will turn from on to flashing and then off, indicating that the code is cleared successfully.     Package includes:  1 x Remote.  1 x Controller