Enjoy your favorite songs anywhere! The Sansa m230/m240 lets you hear your favorite selections of music skip-free — even during vigorous exercise. The m230's 512MB memory can hold up to 120 MP3 songs (8-hour capacity) or 240 WMA songs (16-hour capacity), and the m240's 1GB memory can hold even more: up to 240 MP3s (16-hour capacity) or 480 WMAs (32-hour capacity). Set it on Repeat mode, and the device can play for up to 19 hours continuously on 1 battery! It also supports DRM WMA and Audible formats as well as Microsoft® PlaysForSure Subscription service. Plus, the built-in FM tuner features 20 presets for you to switch to radio when you need a change of pace.