Official MLB Logo Portable Speakers Design and Offers Great Sound Quality * Compatible With Any Stereo Audio Devices, Including iPod, iPhone, and Other MP3 Players. * AC Adapter Included * Wireless Remote Control Included. Allows you to Adjust and Control the Volume and Mute From A Distance Away. * AUX-IN 3.5mm Cable Included, Allows It To Be Compatible With Other Audio Devices. * Optional Power Supply 4AAA Batteries (Batteries NOT Included).