Easy, intuitive navigation You can browse for songs while listening to one already. Easily customizable sound equalizer Customize your sound with the five-band frequency settings, or just choose one of the seven different equalizer presets for best music experience. Support for wide range of music formats MG100 plays MP4, WMA, and ASF, right out of the box. Of course, it also plays DRM-enabled songs purchased from the Internet. Don't let MG100's slim body deceive you Only 87.2mm40.5mm9.2mm, it's thin; but it doesn't mean its battery life also is--MG100's integrated, rechargeable lithium-polymer battery allows for the unit to continuously play songs for up to fifteen hours. High speed USB2.0 connectivity Experience faster song transfer with MG100's built-in support for USB2.0 Now featuring the smarter voice recording MG100 offers VOR, or Voice Operated Recording, which automatically activates and deactivates recording function by detecting noise level. You can also set the quality of recording results. USB mass storage If you own an MG100, you already have a USB memory stick. Store your documents and large-size files in MG100 for ultimate portability. Organize your songs If you're familiar with your computer, you already know how to manage and organize the songs in your MG100--the file management concept for MG100 follows that of your computer's folder management. Built in FM radio You don't need to buy a separate FM radio module. MG100 comes with integrated FM radio functionality with auto-scan and radio station presets. You can even record the FM radio station you're listening to. No favoritism MG100 supports both windows 2000/XP and Mac OS X 10.2/10.3/10.4. Included in the box Mpio MG100 MP4 player in silver color x1 Earphone x1 USB Cable x1 User's Manual x1 Driver CD (Only needed for window 98 / 98 SE or below) x1 Neck Strap x1