Philips Fidelio DS7550 Portable Docking Speaker for iPod/iPhone Dock any 30-Pin iPod/iPhone, even in its case, supports most iPhone and iPod models with Universal Dock Connector Elegant, slim, and truly portable: versatile and compact design to fit into any briefcase wOOx technology for rich yet precise bass without distortion; a revolutionary loudspeaker concept that allows you to hear and feel profoundly deep bass; tweeter ensures smooth transitions from low-mid to high frequencies; dual suspension and a totally symmetrical sandwich construction Dynamic Bass Boost (DBB) to preserve low tones for deep bass at any volume level, DBB maximizes your music enjoyment by emphasizing the bass content of the music throughout the range of volume settings-from low to high-at the touch of a button Robust aluminum finish and cover case for full protection, Shielding technology to block mobile phone interference