If you’ve got an iPhone, an ear for high-quality full-bodied sound and an extra $650 to blow on a phone cover, (and who doesn’t!), treat thyself to the V-Moda Vamp. This state of the art digital to analog converter/iPhone cover takes tracks on your phone and filters them, improving their sound quality and ridding songs of the tinny, compressed sound that often plagues digital files. While the V-Moda will nearly double the size of your phone, serious audiophiles will appreciate the infinitely richer bass and fuller tones created by this Japanese-made converter and headphone amp.

V-Moda Vamp Lightning, $650, Available at v-moda.com