A free app for Android, by AudioDev.
Super Ear – Super Hearing Voice amplifier is a tool that can be used to amplify sound from your device and enhance your hearing. You will be able to listen to better sounds and hear clearly without having to put in any effort.
How can I use Super Ear?
First of all, download the app and install it on your device. After installation, you can start using it right away. You don’t need to do anything special. You can use it without having to modify or change anything. The app is extremely easy to use. You will just need to plug in your headphones or earphones and start listening to the sounds.