1、High Quality Material: Wireless transmitter and receiver module is made of high quality PCB material, wear resistant, anti aging and durable. 2、Excellent Performance: Great influence on the antenna module reception, high sensitivity, increasing the communication distance. 3、Function: Wireless transmitter module allow to wirelessly comunicate with radio frequency controlled devices that operate in the same frequency. 4、Easy Installation: Easy to install, no modification is required, convenient for using, save your time and energy. 5、Wide Application: Transmitter receiver kit can be widely used in remote control switch, receiving module, burglar alarm. Item Type: Transmitter Receiver Kit Material: PCBApplication: Remote control switch, receiving module, motorcycle, car anti-theft products, family anti-theft products Technical Parameters of Receiver Module Operating Voltage: DC5V Static Current: 4MA Reception Sensitivity: -105dB Size: Approx. 30x14 x7 mm/1.18x0.55x0.28in External Antenna: 32CM single core wire, wound into a spiral Technical Parameters of Transmitter Module Transmitting Distance: 20-200 meters (different voltage, different effect) Size: Approx. 19x19mm/0.75x0.75in Working Style: AM Transmission Rate: 4KB/S Transmitted Power: 10mW External Antenna: 25cm common multicore or single core wire Pin Arrangement From Left To Right: (DATA; VCC; GND) 1 x Transmitter Module 1 x Receiver Module