Volume2 - Volume2 is an advanced Windows audio mixer, a complete replacement for the standard Volume Control.
Apple HomePod - The new home entertainment system by Apple
Sound Control - App-specific volume control
AudioBridge - Add AirPlay support to your Sonos speakers
Volume Scroll - Volume Scroll lets you control your main volume by hovering with your mouse cursor over the top...
Sonos Move - Sonos has released their first truly portable speaker