A must have for any Apple iPad owner, the iLive iSD131B Rotating Speaker Dock is made to charge iPads and allow you to play music through the built-in speaker. It functions not only as a stylish dock with rotating capabilities, but it also has digital volume control for easy sound adjustment. It securely holds and charges your iPad and can be rotated for either portrait or landscape orientation, making it a great addition to your iPad. Each dock has a composite video output jack, and a 3.5mm audio input so you can plug in additional devices if desired. An iPod authentication IC is installed with each dock. Last user settings allow you to recall what you were listening to or watching and pick up where you left off. Each speaker dock comes with an AC power adaptor, but can also run on 4 AA batteries (sold separately). iLive products are specifically designed to work with the Apple iPad. Our focus is on delivering a product that serves as an extension of your iPad, increasing not only the quality of sound, but also the range, and at a great value.