inputs.text: great player - dont bluetooth stereo car tolerating terrible audio quality headphone jack note 4 past months looking high capacity nonapple audio player saw couple reviews x1 youtube decided give trylet first say sound quality amazing headphone jack also serves linelevel output need feed amplifier dont connect headphones set linelevel youll destroy ears headphone mode little player still puts lot volume upgrading firmware pretty simple interface nice get hang itthe x1 comes micro usb cable black rubber shell covers micro sd slot doesnt block usb portit supposedly work inline headphone controls dont headphones inline controls couldnt test itthe badishthe instructions come pretty useless youll probably need searches order figure thingsyou make playlists player process importing playlists took bit trial errorthe scroll wheel needs faster scrolling large catalog artists takes longer however scroll backwards alphabetically niceat time im using 128gb micro sd update library function stops 5800 files means listings category section incomplete artist album song etc however library alphabetized artist memory card access music using players file browser instead going category menu actually prefer going file browser anyway missed option ipod playersis player everybody probably not least not yet im sure firmware updates make player user friendly like ability click drag music onto device organize however see fit dont mind rolling sleeves figure things absolutelyeven several quirky things player give 5 starsupdatei received email fiio stating player currently limited 5800 files category section fixing firmware update dont access files using categories prefer using builtin file browserm sure firmware updates make player user friendly like ability click drag music onto device organize however see fit dont mind rolling sleeves figure things absolutely even several quirky things player give 5 stars update received email fiio stating player currently limited 5800 files category section fixing firmware update dont access files using categories prefer using builtin file browser