Built-in pre-amp delivers high fidelity audio output when connected to speakers DC servo controlled motor with belt drive system ensures consistent speed and minimal vibration for clearer sound quality Supports platter spin speeds of 33 1/3 RPM and 45 RPM Equipped with USB and Bluetooth 5.1 (5.2/BLE if available) for streaming audio to wired speakers, Bluetooth speakers, and other compatible audio output devices Required accessories (sold separately RCA cables and/or adapter, depending on what you're connecting the turntable to (receiver, speakers, computer, etc.