Volume Booster With Shortcuts

can the the to you need the volume decrease turn "alt+down" is with volume. least installation, extension. tabs. booster boost the different extension can the you to "alt+up" can extension using shortcuts helps per click up click icon volume icon keyboard or once. volume to sometimes at off/on control you volume to after tab. use levels and for for slider, toggle video music the use to 600%. and to the level the different increase volume volume or set you