Easy to Use: The transmitter and receiver are pre-paired and tested before shipment, so no additional setup is required—simply 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: 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 learning code system with high security due to its low repetition rate. Supports re-learning mode, allowing deletion of old codes and programming of new ones. Ideal for replacing lost remote controls and maintaining full control. 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: Lighting and display differences may cause slight variations between the product color in images and the actual item. Measurement may vary by +/- 1-3 cm.