Vcc Voltage Module Working Voltage And Good Power Supply Filtering The Position Of The Antenna Also Affects The Reception Of The Module. When Installing, The Antenna Should Be As Far From Shielding, High Voltage And Interference Sources As Possible. The Frequency And Oscillation Resistance Used For Reception And Decoding Should Match The Transmitter. The Vcc Voltage Must Be Consistent With The Working Voltage Of The Module, And Power Supply Filtering Must Be Done; The Antenna Has A Great Influence On The Reception Effect Of The Module. It Is Best To Connect A 1/4 Wavelength Antenna, Generally Using A 50ohm Single-Core Wire. The Position Of The Antenna Has A Great Impact On The Module. The Reception Effect Is Also Affected. When Installing, Keep The Antenna As Straight As Possible And From Shields, High Voltages, And Interference Sources; When In Use, The Receiving Frequency, Decoding And Oscillation Resistance Should Match The Emission. Suitable For Remote Control Switches, Receiving Modules, Motorcycles, Car Anti-Theft Products, Home Anti-Theft Products, Electric Doors, Rolling Shutter Doors, Windows, Remote Control Sockets, Remote Control , Remote Control Speakers, Remote Control Electric Doors, Remote Control Garage Doors, Remote Control Retractable Doors, Remote Control Application Environments Such As Rolling Shutters, Sliding Doors, Remote Control Door Openers, Door Closeers And Other Door Control Systems Receiving Module: 1. Product Model:Mx-05V 2. Working Voltage:DC5V 3. Quiescent Current:4MAMHZ 4. Receiving Sensitivity:-105DB 5. External Antenna:32cm Single Core Wire, Wound Into A Spiral Shape Transmitter Technical Parameters: 1. Product Model:MX--03V 2. Launch Distance:20-200m (Different Voltages, Different Effects) 3. Working Voltage:3.5-12V 4. Working Method: AM 5. Transmission Rate:4KB/S 6. Transmission Power:10MW 7. Launch Rate:433m 8. External Antenna:25cm Ordinary Multi-Core Or Single-Core Wire 9. Pin Arrangement From Left To Right:(Data;VCC;GND) Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Type:433MHZ Colour:As Shown Material:PCB Package Contents: 5 * Module (Single Transmission) 5 * Module (Single Reception) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.