Specifications: Remote control Transmitter Operating voltage: DC12V (23A/12V battery x1) Transmitting frequency: 433MHz Encoding Type: Fixed code Receiver sensitivity: > -105dB Transmission distance: 100M (Open field) Size: approx 55*28*10mm Receiver board Operating voltage: AC 110V - 240V Output voltage = Operating voltage Operating frequency: 433MHz (Same with Remote control) Encoding Type: learning code (you can buy extra 315MHz remote controllers for this receiver) Rated contact current of relay: 15A/240VAC, 15A/110VAC (Please notice that: Although the relay is marked 30A 240VAC, the 30A is for the peak current of your load. The rated current of your load should be less than 15A) Box size: approx 65 x 45 x 28mm Package Includes: 1 x Wireless receiver 1 x 2 button remote control transmitter Clear code operation instructions: Long press the learning button for about 8 seconds, and the LED flashes to clear the code successfully. Tips: To switch any working mode, first clear the code before learning. Function mode Pointing mode: short press the learning button once, and the LED flashes once; press the remote control A key, and the LED flashes three times, indicating successful learning of pointing mode. Self-locking mode: short press the learning button twice, and the LED flashes twice; press the remote control A key, and the LED flashes three times, indicating self-locking learning success. When the A key is pressed, a relay activates; press the A key again to deactivate the relay. Interlock mode: short press the learning button three times, and the LED flashes three times; press the A key, and the LED flashes three times, then press the B key, and the LED flashes three times, indicating successful interlock learning. Press the A key to activate the relay, then press the B key to deactivate the relay. Delay function 5-second delay learning method: short press the learning button four times, and the LED flashes four times; press and hold the remote control A key, and the LED flashes three times to indicate successful learning. Press the A key once, and the relay will automatically disconnect after 5 seconds of activation. 10-second delay learning method: short press the learning button five times, the LED flashes five times; press the A key, the LED flashes three times to indicate successful learning. Press the A key, and the relay will automatically disconnect after 10 seconds. 15-second delay learning method: short press the learning button six times, the LED flashes six times; press the A key, the LED flashes three times to indicate successful learning. Press the A key to automatically disconnect the relay after 15 seconds.