Live Bluetooth Microphone is very simple app just sends audio from the mic to the speaker, plug it into your computer or whatever using a 3.5mm male to male headphone jack and you get a free Microphone App.
Connect your mobile with Mic Announcer and have fun by converting into an announcement mic. live microphone will make your mobile totally like mic. It covert your voice at high volume like a loud speaker mic.
It has nearly unnoticeable lag (depending on transport and environment), just like REAL microphone devices!