H4GA Universal Wireless Remote Control 315/433Mhz 12V-48V 4CH Relay Receiver and Transmitter Remote for LED Motor WaterpumpFeatures: Easy operation.4 channels, small size, lightweight and portable.2 types, 315MHz/433MHz for you to choose, you can select according to your needs.The device has decent transmission distance and is quite flexible in functionality, signal stability.Mainly used in garage door control, lighting control, electric door, remote control curtains, lifting equipment, motor control, water pump, projection screen elevator control and security industry and other fields, safe and reliable.Specifications: Material: ABSPCB Board Size: Approx. 9.2x6.5 cm/3.62x2.56 inType: 315mhz/433mhzRF frequency:315MHz/433MHzPackage Includes: 1 Set Remote ControlNote: Learning methods and steps:1, press the receiver to learn the key - light, said into the learning state2, press the remote control any key - light slowly flash three, said the study has been successful.Clear the saved informationLong press the receiver to learn the button until the LED lights flash five times after the extinguished, that the information has been successfully cleared