Portable digital music player</br>64 MB memory, expandable with MagicGate Memory Sticks</br>Supports MP3, ATRAC3, WMA, and Liquid Audio formats (upgradeable for more)</br>5 Mbps file transmission speed</br>USB interface; includes battery charger, USB cable, headphones, NiMH battery, and carry strap</br></br>Product Description</br></br>Downloading a lot of music to your PC?  Now you can take those downloaded tunes with you! The <b>NW-MS9</b> will help! This Network Walkman« Digital Music Player will allow you to transfer recordings of your CDs and Internet Downloads to and from your PC!  It plays back in ATRAC3, MP3, WMA, Liquid Audio and is completely upgradeable to support additional audio formats! This unit uses a SDMI Compliant 64MB MagicGateM-^Y Memory Stick« Media for up to 120 Minutes of Music Enjoyment!</br><br/>http://www.amazon.com/gp/product/B00005T3V9