inputs.text: simple mp3 player - players poorly built pcb moving inside case audio jack cannot put buttons sharp edges player functions also not good everyone usage not rehemehember track position number file sd card usb not sorting facilities shuffle mode also sound distorted high volume levels side supports sdhc transmit sound quite loud bottom line probably not mp3 player people want buy lacks natural mp3 player features however use quite successfully listening podcasts commuting prepare files first split thehem 2 minute parts sort file systehem fatsort utilities automated procedure transfitter good money investment addition burn transmitter trying charge cellphone using usb cable player definitely not usb charger week power convertor buy another one