Although similar in concept to the splashproof wireless speakers we recently covered, Boom's Urchin Bluetooth Wireless Speaker ($150) is one of the more distinctive-looking options out there. Shaped like a rounded stone, it comes equipped with a removable silicone cover in your choice of red, black, or blue colors. That cover allows sound through while blocking the charging and audio output ports. Physical buttons on the top of the speaker allow you…
