Microphone Live Pro 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 mic.

You can use it for voice chatting, recording, and recognition.
It has nearly unnoticeable lag (*depending on transport and environment),
just like REAL microphone devices!

The connection between PC and Android phone can be via Bluetooth,USB.

It isn't possible to make a lag free mic on Android yet, but it's good enough for emergency use.
How to use:
1. Connect your device to an external speaker, and speak in front of the internal microphone
2. Use a deconcentrator/an adapter (e.g. iRig), connect an external speaker and microphone

It is suitable for:

1. Music Performance
2. Presentation
3. Outdoor Activity
4. Audio Amplification
5. Volume Adjust added.

Note:
This is a Pro version without ads, thanks for trust.