Bin always Walkman buyer since it cassettes, CDs and MP3s now players were. I bought this player to make sport, essentially walking. Play operation and data works fine. Battery life of the player is very good. TOP processing. SOUND hold via Bluetooth surprisingly good and the headset in the ear very well at sports. Super sound. One star deduction is available for the low performance of the battery, after a maximum of 4 hours it's a warning, there is not unfortunately. It beeps then the headset goes out. Otherwise super quality from Sony. Buy recommendation.