AC220V input for the receiver. Press the Set button on the receiver; the LED indicator flashes. Then press the button on the transmitter; the LED indicator turns off, indicating successful pairing. When you press the down or stop button, you will hear the sound of the relay. This controller is suitable for tubular motors. This controller does not include a limit switch terminal. Tubular motor with limit switch. Input voltage: AC220V. Frequency: 433 MHz. Material: plastic. Color: white. Package includes: 1 x receiver, 1 x transmitter (with battery). Only the items listed are included. Note: Lighting and different displays may cause slight variations in the color of the item in the picture compared to the actual item. Measurement error allowance is +/- 1-3 cm.