Auralex MAXWall 1141VB
This kit is virtually a portable sound isolation room. The kit uses Auralex's MAX-Wall interlocking panels that can connected in different ways but the kit comes with:

11 - 20"x48" MW panels
1 - MW-Window panel
4 MAX-Stand
4 Max-Clamp
12 CornerCouplers

Background image by Pauline Moss. at http://paulinemoss.deviantart.com/art/Stars-307119758