No, this gizmo isn't a handheld sander. The Soundbug by FeONIC allows you to listen to music without speakers or headphones. It attaches to any hard, smooth surface such as tables or windows and uses these surfaces to amplify the music. It doesn't actually 'play' music as it requires an external source like a CD-player or mp3 player. This novel device can be purchased here. Check out this video clip of someone attaching their Soundbug to a bathtub full of water. It shows an interesting application while also displaying how it works.