The next generation of iPod dock has arrived! This one, from Hammacher Schlemmer, is compatible with most iPod models and features portable, wireless speakers that let you to take your tunes anywhere in the house. The system uses 2 3/4″ spherical speakers that operate on a wide 915 MHz frequency that won’t interfere with other wireless devices. Each 3-watt speaker produces clear, vibrant sound up to 120 feet away. A built-in rechargeable battery allows up to eight hours of operation from a two-hour charge.