Kit emitator-receptor Engrosm 433MHz

Launch distance: 20-200 meters (different voltage, different results)Operating voltage: 3.5-12VDimensions: 19 * 19mmWays of working: AMtransfer rate: 4KB/Stransmit power: 10mWTransmitting frequency: 433M(we have 315M)An external antenna: 25cm ordinary multi-core or single-core linePinout from left -> right: ( DATA ; VCC ; GND )