Mege iPhone let use your device as mega phone. Feel that you devices can be use to as Mega Phone. Mega iPhone is solution for that. Its easy to use
1. Select device type
if you want to use your device as mic in Mega iPhone (select mic)
2. Make other iPhone as Speaker
3. connect to speaker device with + icon.
4. Accept request to join at Speaker device.
5. Speak!!!!!! Your Mega iPhone is ready.
6 Select More than 5 device. Best part is ITS FREE!!!!!