inputs.text: solid nice feature set options basic mp3 player usb flash drive - order four units 1 black 1 blue 2 red vendorall arrived perfect condition sealed new fully functionali pleasantly surprised see well fm radio actually worked digital tuning autoscanprogram mehemory appears permanent testing battery rehemovedflashing multicolored led backlight slightly annoying options set allow choice led backlight color led delayoff configurable well set stay longer navigating menu optionsshuffle play favorite mode mp3 works great music folder tree structure drag drop files itunes media monkey flash drive work perfectly play back good no issues not tried playlists yet not sure handle m3u playlists notautopower options tools menu device turn not playing anything left accidentallyhead phones not bad surprised actually enough sound quality enjoy music seehem matched mp3 player pretty well not drive speakers earbuds full volumei particularly impressed navigation menu options many usb flash drive players used almost unusable menus navigation keys unit works perfectly almost completely intuitive never even opened manual figure options someonesome design team put good thought ui designi would recommend bargain units kids situations not want risk expensive player also flash drive usable without battery installed kids still use thehem school project flash drives without fm mp3 distractions