inputs.text: works iphone 4 - searched high low could find no direct statehement said itehem worked iphone 4s dock bought chance pleasantly surprised worked without problehem reason questioned functionality lod use 5th generation ipod not work iphone 4 knew pin outs changed point time evolution ipod dock could not recall specifics get confusing consider usa spec car stereo interface go iphone ipod no problehems enough connectivity device clips well iphones dock slim enough work easily phone cover without interference small strain relief supports cable exists dock connector expecting cable bit thicker since step fiio l1 none less good flexibility permit connecting back headphone amp 180 degree turn fairly small slim 18\\ connector overmolded plastic housing seehems slightly rubbery high durometer tpe maybe not sure well plug hold time fine unless plan jogging headphone amp need sort connector not think many people anyways no real comments sound sounds like solid line connection expect people notice biggest differences using lod would use high impedance low sensitivity headphones mild low power portable amps fed headphone output iphone scenario may volume high iphone driving amp distortion less headroom line mercy headphone amp happy purchase would recommend everything ebay competing ships asia takes long time receive not mention higher costs shipped locally us established manufacture