For those in the market for a high-end portable Bluetooth speaker, Harmon Kardon presents the elegantly-designed Onyx. Marketed as “standing out like a piece of art in any room it’s place,” this speaker features built-in Bluetooth, AirPlay, and DLNA to connect to all your home and mobile devices. Its four-speaker, advanced acoustic platform and dual passive radiators delivers a powerful, yet well-balanced sound at 4x15W. Cosmetically, the Onyx speaker features a stainless steel handle, cloth grill, and a real leather finish, all without the need for any wires or cables. This sophisticated piece of audio technology will be available soon at Harmon Kardon retailers for $499.95 USD each.