Dont let the miniature size of these speakers fool you. The sound quality of these babies is amazing. The i2i Folding Portable Speakers are compact portable battery-operated stereo speakers. Connect an i2i Stream to your home stereo system and another one to these portable speakers and viola - instant remote speakers. Now you can listen to music in any room in the house or you can even take the party outside.Fold the i2i Folding Portable Speakers and place them in your pocket. Bring them with you wherever you go. Simply plug them into the headphone jack of your i2i Stream iPod MP3 player or any other audio device. ACDC-operated speaker works with 4 AAA batteries included Packaged with a convenient carrying pouch 3.5mm to 2.5mm converter included so that you can enjoy the music from your cell phone Works with all iPods iPhones MP3 players or any audio source with a 3.5mm headphone jack Compatible withiPods and MP3 Players HeadphonesPortable SpeakersComputers and LaptopsHome Entertainment SystemsGaming SystemsInput Voltage 5 V DPower Source AC Adapter Additional Power Source 4 x AAA Battery08/01/2009header1 Year Limited - Refer to Package for Details