+2 photos BOOST STUPDJ-20. 500W bluetooth speaker OL 021600128792 BBI. Monday, November 13, 10:31 PM - Walkman FOR SALE BOOST STUPDJ-20. 500W bluetooth speaker BOOST STUPDJ-20. 500W bluetooth speaker. RGB light show, SD card compatible, aux lead, comes with microphone and remote control. New and ... OL1 Oldham £199.99