Sony D-NF610 ATRAC3/MP3 CD Walkman with Digital Tuner Portable CD player compatible with MP3 files and Sony's ATRAC3plus compression technology Includes SonicStage CD Simple Burner software to facilitate ATRAC3plus CD burning from MP3 files and from other CDs Built-in FM/AM/TV/weather-band digital tuner with 51-station preset memory Skip-free G-Protection technology eliminates or reduces skipping during many active uses 40 hours long playback with 2 AA batteries (not included)