How to connect mic to your car? STEP 1. Turn on the microphone and press FM button to choose a FM frequency (87 .5MHz, 88.5MHz, 89.5MHz, 90.5MHz available) STEP 2. Switch FM on your car to match the station on the mic. STEP 3. pair your mobile device to the mic via Bluetooth, sing and play music, the voice will come out from car speaker How to use duet function? STEP 1.You must have two BONAOK G50 microphones and turn on both of them STEP 2. Just double-click POWER button of one G50 microphone to pair these 2 mics together STEP 3. Pair your mobile device to the main G50 microphone via Bluetooth, and play music, the music will come out from 2 mics' speakers at the same time Dynamic Superior Sound Microphone The upgraded mic core offers a high-fidelity perfect clear sound,built in reverberation and EQ chip to adjust treble and bass effect that help you create a true KTV atmosphere even you just stay your home, which is perfect for party, family singing, travel, classroom, presentation, car karaoke, speech, wedding, stage, interviews and Live Show, etc. Dynamic Superior Sound Microphone The upgraded mic core offers a high-fidelity perfect clear sound,built in reverberation and EQ chip to adjust treble and bass effect that help you create a true KTV atmosphere even you just stay your home, which is perfect for party, family singing, travel, classroom, presentation, car karaoke, speech, wedding, stage, interviews and Live Show, etc How To Record Through Bluetooth Connection: Pair the mic to your phone through Bluetooth, and turn on the recording app in your phone, such as Smule or any other recording app. Just sing and your voice will be recorded in the phone. Through audio cable: Plug micro usb end into mic port and another 3.5mm audio end into your phone. Turn on the recording app in your phone and sing then your voice will be recorded in the phone. Duet Function Wide Compatibility Dynamic Microphone Record Function