3Pcs FM Stereo Transmitter Module MP3 Recorder DIY Radio Station Kit

Note: This is a DIY kit, you need to assemble it. Click here to download the assembly instruction. Feature: Kit model: RF-03PLL Kit use: private radio, car audio transmitter, cable audio to wireless Operating voltage: DC4-6V Operating current: 20mA-40mA Launch distance: 20-80 meters barrier (affected by production level) Transmit frequency: 87-108MHz, 14 frequency, through the DIP switch to change the frequency Power indication: Yes, less than 4V Auto light off Antenna: 300mm soft wire, you can also modify to launch farther distance Oscillation mode: PLL phase-locked loop Frequency stability: zero drift Sound quality: excellent, stereo two-channel transmission, automatic gain control Microphone: Yes, PCB onboard Microphone distance: 1 meter normal speech Microphone and audio input conversion mode: pull out the audio line microphone automatically work PCB size: 74mm * 52mm Package includes: 3 x DIY FM Stereo Transmitter Module Kit Low frequency D0 D1 D2 D3 Frequency L L L L 87.7MHz H L L L 87.9MHz L H L L 88.1MHz H H L L 88.3MHz L L H L 88.5MHz H L H L 88.7MHz L H H L 88.9MHz High frequency L L L H 106.7MHz S3 dial to H108M H L L H 106.9MHz L H L H 107.1MHz H H L H 107.3MHz L L H H 107.5MHz H L H H 107.7MHz L H H H 107.9MHz Soldered PCB, for reference only.