Roberts Bluetooth Speaker in Studio White | Beacon310SW BT Speaker, NFC, Passive Bass Radiator, Chrome Trim, Aux in, 12hr Battery life. Studio White The Beacon 310 combines the distinctively rich Roberts sound, with clean retro design, for a Bluetooth speaker that looks as good as it sounds. Seamless streaming with Bluetooth connectivity Full-range speaker delivering crystal clear audio Up to 12 hours portable play time Dimensions: 9.4cm (L) x 9.4cm (W) x 19cm (H) x 722g