The Sony DAV-HDX275 BRAVIA Theatre System includes an integrated 5 DVD/CD changer, 1000 watts of home theater power, and an included iPod Dock. With the optional S-AIR receiver/speakers system, you can now easily send your music wirelessly to another room in your home. Using exclusive Sony Technology, S-AIR brings the promise of multi room audio distribution that most anyone can set-up, it's that easy. DAV-HDX275 comes equipped with DIGITAL MEDIA PORT that works with various accessories (sold separately). The DAVHDX275 can control a select number of BRAVIA televisions with BRAVIA Sync via the HDMI interface. With "One Touch Play," operations that took several steps have been reduced to one. Also, HDMI interface upscales DVD media up to 1080p This BRAVIA System optimizes speaker placement in just 30 seconds with Digital Cinema Auto Calibration.