Feature: 1. Multi Uses: 433MHz transmitter receiver kit can be used in remote control switches, receiver modules, motorcycles, car anti theft products, home anti theft products. 2. Characteristic: The wireless transmitter module allows you to communicate wirelessly with radio frequency (RF) control devices operating on the same frequency. 3. Practical Electronic Parts: If you want to automate your house without pulling cables then this device will help you very well, very practical and reliable electronic parts. 4. Simple Operation: RF transmitter receiver module is easy to use, the range is wide (using antennas on both sides), you can send strings (text) from one point to another. 5. Exquisite Manufacturing: Super regenerative transceiver module is made of PCB board, high performance, strong reliability, making sure safety use. Specification: Item Type: RF 433MHz Transmitter Receiver Kit Material: PCB Usage: Remote control switch, receiving module, motorcycle, car anti theft products, home anti theft products Receiver Module Technical Parameters: Working Voltage: DC5V Quiescent Current: 4MA Receiving Frequency: 433MHZ Receive Sensitivity: -105DB Size: Approx. 30x14x7mm / 1.18x0.55x0.28in External Antenna: 32cm/12.6in Single Core Wire, Wound into a Spiral Transmitter Module Technical Parameters: Launching Distance: 20-200m/21.87-218.72yd (Different Voltages Have Different Effects) Working Voltage: 3.5-12V Dimensions: Approx. 19x19mm/0.75x0.75in Works Method: AM Transfer Rate: 4KB/S Transmit Power: 10mW Transmission Frequency: 433MHZ External Antenna: 25cm/9.84in Ordinary Multi-Core Or Single-Core Wire Pin From Left To Right: (DATA; VCC; GND). Package List: 1 x Receiver Module1 x Transmitter Module