Overview Your iPad sits upright in the dock as it syncs or charges, so it's perfect for a desk or countertop. It features a convenient audio line out port that connects to powered speakers. You can even use it as a picture frame while it's charging. Here are some ways you can use the iPad Dock: Connect the dock to your computer with the USB (Universal Serial Bus) cable with your iPad to sync iPad & charge its battery. Connect the dock to an electrical outlet using the iPad 10W USB (Universal Serial Bus) Power Adapter to charge the iPad battery. Use the dock to hold your iPad at the perfect angle to compose email & notes using a Bluetooth keyboard or to watch your favorite videos or photo slideshows. Connect the dock to a stereo or speakers using an AV cable or a stereo audio cable to play music from iPad Specification Weight Approx:72g Size Approx:7.4 x 7.4 x 3.5