Megafone is an audio transmition app which can route audio to desired outputs.
Megafone contains three media stream features. You can route Audio to built in speaker, Wired Headset and Bluetooth headset. You have an in-app Volume seekbar option to maintain your voice control through the application. Application contains three types of input and output audio streams so you can decide from where your voice stream should go through. Megafone has a sharing feature as well, So you can share this application to Facebook among friends and tell them about it. Megafone contains help screen so it can instruct you.
Megafone can handle the following scenarios
1. route voice from phone mic to phone speaker
2. route voice from phone mic to bluetooth headset
3. route voice from phone mic to wired headset
4. route voice from bluetooth mic to phone speaker
5. route voice from bluetooth mic to wired headset
6. route voice from bluetooth mic to Bluetooth headset
7. route voice from wired headset mic to phone speaker
8. route voice from wired headset mic to wired headset earpiece
9. route voice from wired headset mic to bluetooth headset
This application requires no phone root access.