Aside from announcing its entrance into the portable Bluetooth speaker category today, Beats Electronics has also launched its first new set of headphones post Monster. Aiming to cater to the jet-setting business crowd, the company is classing things up with its (finally released) $300 Executive noise-cancelling over-ears. The design of the headphones seems to be a blend of the Mixr and classic Studios, wrapped in brushed aluminum that's complimented by dark gray leather pads and