Generic E_14012408 Imported 433Mhz Wireless Transmitter and Receiver Module Kit for Arduino Diy 2 Pieces Description: transmitter head: adopting 2sc3357 audion actual working distance: 50-100m working voltage: 3-12v working current: 10-15ma working mode: am transmission rate: 4kb/s transmitted power: 10mw frequency: 433mhz external antenna: 28cm (ordinary multicore wire /single core wire) arrangement of lead foot (left -right): data?Vcc?Gnd size: approx. 1.9 X 1.9 X 0.9Cm / 0.75 X 0.75 X 0.35 Inch package includes: 1 x wireless transmitter 1 x wireless receiver.