The ancient technique of marbling is used to produce mesmerizing works of art. Utilizing water, natural dyes and unique tools, Bitti Gitti produces one of a kind versions of their award winning Wooden Sound System. The streaked and swirled aesthetic is lovely to look at, and the all-natural birchwood core increases volume by 25 dB's - a perceived increase of 400% - whilst adding a warm, friendly tone to the music. Each marbled sound system is handmade and colors and patterns vary widely. If you would like to choose your sound system let us know at checkout and we will contact you with photos before shipping.