'it will play up to 320 Kbps MP3 and WMA, which is plenty for portable audio.'
'the included earbuds are uncomfortable and don't sound particularly great,'
'Because the battery just snaps out and in you don't have to worry about soldering in a new battery or breaking the hardware inside.'
'The user interface is identical to the DJ 20's, including the ballistic effect of holding the forward and back buttons: The longer you hold them, the faster they scroll through the songs.'