Brand Feature: Uses intelligent microprocessor control, suitable for garage door control, light control, remote control curtains, access control systems, and various motor control systems. Compact and lightweight, easy to install, safe and reliable to use. Turn on/off the receiver with the transmitter (remote control) from any location within a reliable range; the wireless RF signal can pass through walls, floors, and doors. Instructions: Learning method: After powering on the controller, the indicator light remains on. Press the learning button for 2–3 seconds until the indicator light turns off automatically. Release the learning button, then press any key on the remote control. The indicator will flash 4 times, indicating successful learning. Note: The controller can learn fixed codes, rolling codes, and up to 16 different encodings from any remote control. If more than 16 remotes are programmed, the earliest learned remote will be removed automatically. Cleaning method: Press and hold the learning button for approximately 8 seconds until the indicator light changes from off to on, indicating successful reset. Connection mode: Connect 12V/24V DC output: The input terminal of the 12V/24V two-way remote control switch connects to a 12V/24V DC power supply. The common end of the output terminal connects to the positive side of 12V/24V. Connect the positive side of the load (e.g., bulb) to the output terminal's positive lead, and the negative side of the load to the negative side of the power supply. Specifications: Item Type: Receiver + Remote Control Material: Plastic + Metal Size: Receiver: 55 x 74 x 30mm / 2.1 x 2.9 x 1.18in, Remote: 29 x 61 x 12mm / 1.14 x 2.4 x 0.4in Color: As shown Frequency: 315MHz, 433MHz (Optional) Channels: 2 Voltage: DC 12V–24V Receiving sensitivity: ≥ -95dB Output mode: Momentary, latching, and interlock Quantity: 1 Set Note: No retail packaging. Transition: 1cm = 10mm = 0.39 inch Allow 0–1cm error due to manual measurement. Please ensure you are comfortable with this before purchasing. Due to differences in monitor displays, the image may not reflect the actual color of the item. Thank you. Package Includes: 2 x Remote Control 1 x Receiver