Sound booster - tab volume control
Best volume booster Chrome extension, this volume booster for Chrome can increase sound of video and music about max.
Boost Volume & Bass Booster
Boost Volume aids in amplifying the sound of videos or music! Enhance both volume and bass with the volume control and bass booster
MP3 Volume Changer, Cloud MP3Gain
Allows you to increase, decrease, and normalize the volume level of MP3 audio files. Tweak the volume level to make the MP3 louder.
GrepWords CPC & Search Volume Enhancer
Adds 'key'word cpc and search volume to Many diffrent services including SERPs, UberSuggest, Majestic SEO, OSE and WMT