SONY Discman with 2x oversampling function. It worked without problems, but it's an old item, so the music may stop if moved lightly. Please purchase only if you understand that this is a used item. - Brand: SONY - Model: Discman - Function: CD Compact Player - Features: 2x Oversampling - Operation Buttons: Play/Pause, Stop, Track, Step, Section - Model Number: D-33 Thank you for viewing.