The Bose SoundDock is a portable speaker with an output of 150W that can turn your iPod/iPhone or Bluetooth Adapter into a portable stereo system. A 3.5mm AUX port is included. Featuring a high-capacity 2200 mAh battery, when new, the unit allows up to 8 hours of wireless playback (at medium volume level). This speaker produces full and clear audio reproduction with well-pronounced frequencies. Bose's proprietary signal processing system makes the sound precise and realistic even at low volume levels. The rear-firing bass port makes the reproduction of the lower frequencies powerful, deep, and detailed, which is surprising because of the compact dimensions. The bass is clean and doesn't sound muddy even at higher volumes. This speaker is advertised by Bose as a good fit for any location. Available in Black and White