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Coffin with built-in sound system lets you rock out, even after you're dead

Ints Kalnins / Reuters

Fredrik Hjelmquist shows the CataCoffin in Stockholm Jan. 18. Music and video equipment store owner Hjelmquist said his hi-fi coffin would entertain the dead and provide solace for grieving friends and relatives by making it possible for them to alter the deceased's playlist online.

Ints Kalnins / Reuters

The coffin, which retails for about $30,000, boasts two-way front speakers, 4-inch mid bass drivers, a wide range tweeter with external cooling, an 8-inch sub bass element and more.

NBCNews.com's Dara Brown gives you a look at the CataCoffin in action.

Stephen Colbert takes a look at the CataCoffin

PhotoBlog: Take your passion to the grave in a Crazy Coffin

Learn more about the CataCoffin at the official web site