The B224OBS-C from Auralex is a 2-foot by 4-foot ProPanel™ series ceiling panel covered with Obsidian fabric. Well suited for small room environments, this 2" thick absorptive panel is designed to reduce unwanted room reflections, slap and flutter echoes, and provide a more pleasing and accurate listening environment. The acoustic panel features chemically-hardened beveled edges and a fiberglass core, and comes with four Auralex Cloud Anchors for easy installation.