3.7-12V Wireless Remote Control Switch Mini Small PCB 433mhz RF Transmitter,3V -12V Battery Power Circuit Micro Controller for DIY

it is a small size and easy installation. high sensitivity, with flexible control ，five working model for choose,It adopts non-directional wireless encoding technology, allowing independent control without mutual interference. easy to use : We have made transmitter and receiver working together and test it before ship it,when you get it don't need to do anything ,just install it. the RF remote control adopts RF technology, stable signal. Signal of the wireless RF switch can pass through walls, floors and doors, steadily control receiver from any place within a reliable distance, Max range is up to 50 meters with no obstacle. it is mainly used in swtich, lamps, relays, remote controller, circuit boards,trumpet, power switch,home wireless control and security industry and battery powered on/off for small devices, etc. and other fields. as a seller of integrity, customer satisfaction is our lifelong pursuit, If you encounter any problems in use, please feel free to contact us any time, we will be happy to serve you, thank you very much