iLuv Smashbox Pro 3.5mm Aux Portable Speaker Case with Built in Hands Free Calling for Smartphones (iPhone 6, 5, 4) Ipad-Black Sturdy, convenient zipper case offers protection Powerful built-in speakers provide depth and clarity Built-in microphone for hands-free speakerphone calls Any audio device with a3.5mm jack - iPod, iPhone, Samsung GALAXY S series and other MP3 players Includes hanging clip, carabiner and Velcro straps. Operates with two AA batteries (not included)