... the award-winning MOTOROKR S9, the Motorola S9-HD. Freedom to exercise, move around and commute without ... reduce background noise and improve comfort. The S9-HD is the new benchmark of wireless music powered ... sound and high-definition acoustics from SRS WOW HD technology. Leave the outside world behind as you ... with enhanced bass and noise isolation. The S9-HD wraps you in rich sound quality, not wires, ...