The Sony MZ-E520 is an ultra-slim, metal-bodied MD Walkman designed for playback only. It features a unibody matte aluminum chassis accented by the classic iridescent "water-drop" Walkman logo. Equipped with the G-PROTECT anti-shock system and a 6-band digital equalizer, it also supports Dolby noise reduction. The sliding MD disc compartment mechanism operates flawlessly, and the unit is fully functional regarding reading, writing, and playback. It comes with original wired earphones and a black velvet carrying pouch. The device shows only minor signs of use and has never been disassembled or repaired; it remains free of deformation, making it an excellent choice for collectors of vintage Japanese Hi-Fi digital audio and MD players.