Working mode: 1. Inching mode: Press the remote control to connect the relay, and release the remote control to disconnect the relay. 2. Self-locking mode: Press the remote control to connect the relay, and press again to disconnect the relay. 3. Interlock mode: Press remote control key A to connect the relay, and press key B to disconnect the relay. 4. Delay mode: Press the remote control to connect the relay, release the remote control to start timing. After 5 seconds, 10 seconds, or 15 seconds (3 settings), the relay will automatically turn off. Input Voltage: 12 V RF working mode: Superheterodyne Receiver sensitivity: greater than 97 dbm Transmission distance: over 100 meters (open space) Decoding mode: MCU software decoding Remote storage: 20 remotes Supported remote type: EV1527 learning code Working modes: Momentary, toggle, latching, time delay (5s, 10s, 15s) Output terminals: NO, NC, COM Remote control battery: 2 x 3 V CR2016 button batteries Note: Maximum input voltage is 12 V Remote programming supported Color: transparent Material: plastic Package Contents: 1 x Receiver module 1 x AB Type Remote Control (with battery) Only the above package content is included; other items are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.