These incredible speakers are a boon for all music aficionados. With 4" full range driver for satellites and 6.5" bass driver for subwoofer the F&D A521X 2.1 Multimedia Speakers provide sound that is not only heard but also felt. The speakers have features like plug & play USB reader, Bluetooth 4.0 for wireless playing, uninterrupted digital FM working on PLL technology, FM storage with up to 100 stations, super big wooden cabinet subwoofer and satellites that deliver heart-thumping bass. Its high efficient energy saving design not only makes certain you get the best quality sound but also saves on energy consumption. It also has a fluorescence full function remote control that allows you to play your desired song & FM station directly by numeric keys.