Compatible with all iPod generations, with built in iPod/iPhone dock that acts as charger 2 inch, class D amplifier with full range driver and neodymium magnet Long bass reflex port to enhance bass expression Additional auxiliary 3.5mm stereo input for additional audio sources Battery compartment accomodates 6 AA batteries (batteries not included) Pop-out power and master volume control knob White LED power indicator located on top of product Foldable stand beneath speakers for desired listening direction Wireless remote control with full ipod/iPhone menu navigation Retractable iPod docking drawer, with iPod/iPhone dock adapters included