Mini Clip Metal Mp3 Player with LCD Screen + Micro/TF Slot Mp3 Memory Expandable UP 16GB NO SD Card Can also be used as a Micro SD/TF card reader Compact and stylish mp3 player. U-disk storage function. Built chargeable lithium battery.Charged by Mini 5P data cable Support up to 16GB external micro SD card (not included). High speed USB2.0 You need to insert a memory card in the MP3 before connected to a computer, then data can show you.