ArtDio Portable Bluetooth 2.0 Speaker with Microphone Compatibility: iPod mini; iPod shuffle 1G, 2G; iPod nano 1G, 2G, 3G, 4G; iPod classic; iPod touch 1G, 2G; also compatible with MP3 players Pre-amplified and magnetically shielded design affords optimal performance Built-in microphone allows for wireless speakerphone capability Versatile power source runs on either AC adapter or 4 AAA batteries Also includes a 3.5-mm stereo input cable and handy carrying case for portability