Tips Check your user manual to learn if your Sony Walkman has a replaceable battery, and to learn what kind of battery it requires.

The Walkman was just as big a change in the way we listened to music as the iPod was in the early 2000s.

Sony's two new high-resolution Walkman models, the new compact H.ear NW-A25HN and high-end NW-ZX100HN, are announced at IFA.