China Doll - Reduce Output Speaker Volume To Remove Feedback - Not Practical – Megaphone: Voice Amplifier Review

The reason why everybody is complaining about feedback and echo is this app needs to be pampered(decrease volume ...) into a state where it works. I put a 10 foot cable to my speakers and it was difficult getting away from the echo and feedback. I basically had to reduce the volume to where I question what is the purpose of this app. If feedback and echo is enjoyable to you then you will not mind this app. I'm guessing the real issue is iPhones are too sensitive or at least the features available to the software writers leave this app and similar apps to be oversensitive causing feedback and echo.
Review by Me No Like Feedback and Echo on Megaphone: Voice Amplifier.