Belt-driven Turntable mechanism plays 3-inch records Two 3-inch vinyl large-hole post adapters included USB or battery powered (4AA batteries required) with a built-in speaker so you can play your collection anywhere Powerful features including at-3600 moving magnet cartridge, pitch control, Fully supported Turntable platter, and aux out port Includes clear dust cover, aux cable, AUX to RCA Adaptor, and USB to Mini USB charging cord