If you need a little boost in the hearing department, you may want to check out the Ear Booster Pro Super Hearing mobile application. It is a program that can help transform your Android smartphone into a hearing aid; all you need is to have the app downloaded and a headset plugged in (without the external audio hardware, the app will not work properly!).

You will only have to select which audio source the program should use. Then, you can toggle the volume and equalizer settings via the dynamic dashboard. You can also add filters to improve the sound feedback, such as noise cancellation or bass boost.