Sony PSLX520 is a stereo turntable system with a quartz lock control system that ensures accurate record playback speed. It features an auto-record-size selection system that automatically detects the size of the record being played and adjusts the playback speed accordingly. The turntable also has a repeat function that allows you to replay a record multiple times without having to manually reset the stylus. Additionally, the turntable has a synchro remote control cord connection that allows it to be synchronized with a Sony cassette deck for synchronized playback of records and cassettes.