Sony has unveiled two new audio systems for the iPod, one offering multi-room wireless audio, the other dual iPod docks for DJ-style mixing. The Sony S-AIRPLAY system employs Sony’s S-Air technology to wirelessly transmit audio from the system’s main docking station to separate S-Air wireless speakers. The system includes one docking station, which features a built-in iPod dock, an AM/FM tuner, a dual source to allow one speaker to listen to radio while the other listens to audio from the iPod, and composite A/V outputs. The wireless speakers, two of which are included in the system, and up to 10 of which can be used simultaneously, offer remote control capability for the iPod’s music controls, sleep timers and alarm clock functionality. The Sony S-AIRPLAY audio system is available for pre-order now and will begin shipping in September for $400.