One of the accessories that will be available for the new Sony Ericsson W660 will these speakers be Snap-on MPS-75.
It is a small unit that plugs into one of the exits at the bottom of the phone, with the advantage that takes the power of the mobile itself so that we can use it anytime, anywhere.
It has sound estuary, integrated FM antenna and neodymium speakers. The dimensions are 101.5 x 65.5 x 48 mm and weighs 107 grams. Then a couple of pictures with the two colors to match the W660.