HeadRush Touch N' Go Portable MP3 Speaker Case ~ New with tags... Features: Zippered Case with Dual Speakers protects your Mp3 Player, Smart Phone or Android Device. Standard 3.5mm jack compatible with most MP3/MP4 Players/Devices On/Off Switch, Power LED, Volume Control, Pouch for Player. (requires 3 AAA batteries). I have these in either Blue or Grey.