Every device has a built-in Android eQualizer.
Speaker Booster Pro
simply adjusts the frequencies to achieve louder effect.
We use the loudness module which runs on devices with Android 4.4, you simply need to tap the
Boost
button.
Use the demo song to spot the difference and adjust the desired level of the effect.
Older version should use the slider only.
For maximum results use external
speakers
or
headsets
.
Ringtone: https://goo.gl/zG9TPc
Listening music too loud is bad for your ears.
9Apps 4.9
