Sony's latest Walkman MP3 player promises to entertain you for at least 50 hours – an extravagant claim. As well as providing 50 hours of music, it can play 10 hours of video before needed its battery replenishing.
The music and video player comes in capacities from 8GB up to 64GB and supports album art so you can take a visual stroll through your music collection.
You can bookmark points in our video should you be interrupted partway through watching Avatar and you can also use the player as a mini karaoke machine. Song lyrics can be shown on its 2.8in screen.
Pricing has not yet been announced. For full details see sony.co.uk/walkman.
The super-slim Sony Walkman E540 can display song lyrics and be used for karaoke-style entertainment
Sony claims the Walkman E540's battery can last up to 50 hours when playing music before needing a recharge