Product Parameters Operating Voltage: DC 12-24V Operating Frequency: 433MHz Maximum Load: 7A per channel (dry contact) Modulation: +LoRa Receiver Sensitivity: -130dBm Remote Control Parameters Operating Current: Less than 110mA Operating Voltage: DC 9V Number of Buttons: 1 Remote Control: 5000m 1-button remote control, inching/locking Operating Mode: Inching, lock Function: Feedback On Inching: button A on the remote control to activate relay output. Release the button to deactivate the relay. Deactivate the relay: button A on the remote control and release it. button A again to deactivate the relay. Color: White Material: plastic Package Contents: 1 x Controller 1 x Remote Control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.