Coby USB-Stick MP3 Player with Stereo Speaker System 1 GB MP20016-1G (Black) (Discontinued by Manufacturer) MP3 player 1 GB flash memory with stereo speaker system Plays MP3 and WMA digital music files, mobile data storage function, convenient integrated USB plug( no cables required) USB 2.0 hi-speed for fast file transfers, high-efficiency mini stereo speakers Lightweight and compact design, 3.5mm stereo plug for use with most audio devices No external power adapter necessary