Panasonic bookshelf speakers includes attached mini “100w” amp, with mini usb(flash drive playlists in multi formats), 3.5mm(headphone) aux in, and the advantages of Bluetooth 5.0. Higher bass is nice and crisp, beautiful rich loud sound with Included smart amp and 15w power supply. Complete system Just plug in, pair, and blast a podcast They look like regular bookshelf speakers, they match any setting, at home or at work. Green local delivery included Pics available soon