Easy to Use: The transmitter and receiver are pre-paired and tested before shipping. Simply install and use without additional setup. 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, door alarms, security machinery, and other wireless control systems. Signal: The wireless RF signal can penetrate walls, floors, doors, and windows. Multiple units can operate in the same location. Turn the receiver on or off from any location 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 and re-learn capability. Allows deletion of old codes and programming of new ones, ensuring control even if a remote is lost. Buttons: 2 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: The package includes only the items listed above. Other products are not included. Note: Slight color variations may occur due to lighting and display differences. Measurement error is +/- 1-3 cm.