features: sharp atrac 3. "slot-in" (non-clamshell) disc insert/eject [easier to manage when you're on the go], stereo/mono recording, track move/ divide/ combine/ erase, random play, sound-synchro recording [starts recording when audio appears on the input, automatically truncates between track silence exceeding 4 seconds], auto marker, remote on headphone cord (volume, track select/position, stop/ pause/ play, bass boost), katakana/roman alphabet input/display. line out uses the headphone connector. unit available in black or silver. comes with: headphones,, lithium ion rechargeable battery, ac adapter . playback time 4.5 hours, recording 3.5.