For all but the most dedicated audiophiles, speakers are something to hide away. You won't mind leaving the Tivoli Audio Sphera Speaker out in the open. Hidden inside its slim, circular hardwood body is a 3-inch, long-throw full-range driver that works with a hidden bass port to deliver full sound. Wi-Fi and Bluetooth let it receive signals without any wires, and the optional rechargeable battery can get rid of the power cord for up to eight hours at a time, whether it's sitting on the included stand or hanging on a wall. It connects easily with other Tivoli gear to create a stereo or whole-room system, and is available in black or walnut.