Sony Docking System for iPod with Wireless Subwoofer (Black) Compatible with iPod and iPhone. Simply dock your iPod or iPhone and your music will play to a high output speaker and subwoofer. Optional expandability. The iPod Dock with Subwoofer can be paired with up to 8 additional S-AIR client speakers It allows you to transmit high quality audio from your iPod to multiple rooms in your home. Control your iPod or iPhone from across the room using the included IR wireless remote control. The Dock for iPod plus Subwoofer brings your favorite songs to life with superb audio quality. Enjoy crisp, clear highs from the two speakers, and deep, resonant bass from the included wireless subwoofer. The included wireless subwoofer lends your favorite music a pleasing depth and resonance without sacrificing higher frequency performance.