It works for both speakers and headphones. You will also discover a significant difference in your ringer, alarm and voice call level.
Disclaimer: This app will NOT damage your speakers.This app doesn't have viruses and will NOT damage your phone!
Advertising Policy Disclosure:We love creating apps, and want to keep them free forever. In order to keep our development running, Volume Booster is ad-supported to generate some revenue.When you click on advertisements delivered by Volume Booster, you will typically be directed to a third-party’s web page.