Easy to Use: The transmitter and receiver are pre-paired and tested before shipping, so no additional setup is required—just install and use. Widely Used: This remote switch is suitable for industrial control and security applications, including lights, motors, remote controllers, wireless security alarms, windows, lifting equipment, electric doors, wireless door alarms, security machinery, and other wireless control systems. Signal Performance: The wireless RF signal can transmit through walls, floors, doors, and windows. Multiple units can operate in the same location. The transmitter can turn the receiver on or off within a reliable range of up to 164 feet (50 meters) in open areas. Learning Code: Features a secure learning code system with a low repetition rate. Supports re-learning mode to erase old codes and program new ones, ensuring control even if a remote is lost. Buttons: 2-button remote control Remote Distance: 20–50 meters Working Frequency: 433 MHz Max Load Current: 30A Encoding: Fixed code / EV1527 Color: Black Material: Plastic Package Contents: 1 x Remote Switch, 2 x Remote Controls Note: Other items not included. Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1–3 cm.