inputs.text: good overall basic mp3 player bad touchscreeninterface - update havent really used almost 6 months sound htc one m7 m8 android phone good enough much much easy use navigate music purchased z2 plenue iaudio 10 instead really failed big time touch screen interface someone owned couple cowon devices excellent x5 giant a3 must say like d20 im bit disappointed couple things touch screen could better well user interface great portable music player pros sound quality course cowon device sound quality excellent always usual various presets 48 one 4 user presets customize user preset customizable eq bbe mach3bass mp enhance stereo enhance reverb effects short sound quality brilliant always everything ive plugged actually made cheap bluetooth35mm speaker sound 10 times better used anything else size compact light actually expecting bit closer size a3 huge instead pleasantly surprised closer x5 size isnt quite thin players never really problem battery life well cant really say anything full battery life 90 hours using player quite bit almost week battery indicator not dropped one bar expandable memory sd card slot yes support micro sd cards anyone wondering im using 32gb micro sd card sd adapter works fine apparently support 128gb codec support always cowon players play pretty much format throw not however play 24bit96khz flacs try play player crash though 16bit44khz flacs perfectly fine imo common also fully supports embedded album art even m3u playlists yay playlist support standard chargingdata port unlike older models miniusb port used miniusb cable instead big adapter proprietary port like x5 functionality plays videos video player isnt great works displays pictures displays documents flash fm radio work various countries records voice linein needs additional adapter fm radio notepad typing one works better touch screen isnt great drawing calculator calendar datetime stopwatch sleep mode etc supports custom uis really hate user interface ive actually gotten used point replace custom uis made c2 found iaudio forums possible rockbox support loved rockbox os x5 ive found port d20 developed moment cons touch screen well 2013 device still uses resistive touch screen mean works doesnt work well capacitive touch screens instance try swipe likely youll randomly choose something didnt want choose sometimes press screen isnt completely accurate sometimes pressing icon scroll menu screen instead choosing icon pressed bit annoying someone used lot touch screen devices one isnt bad user interface well first got device absolutely hated default theme text icons way small screens pretty animations whatnot secondary theme imo better ithas larger icons readable text odd reason decided remove nice animations stuff theme doesnt make sense bit difficult first figure everything playing around gotten used not bad also stated previously number custom uis available mainly main screen music player browser unlike users actually like spinning album art animation custom music uis remove annoys buttons isnt huge con would nice actual rew prevff next buttons along volumemenu buttons workaround set volume buttons rew prevff next screen turned locked well setting menu button playpause without long press overall conclusion happy d20 definitely better carrying around giant a3 battery x5 pretty much shot 90 hours battery life beautiful thing also not stupid joystick thing plus sound quality always excellent sound options customizable portable device unfortunately ui could much better included better touch screen would gladly payed bit extra even cons get used everything really good portable music device features kind secondary not done well youre like cowons customers youre going mainly using music anyway osui really bad least hope rockbox port coming soon