plays and charges most docking iPod models Sleep to iPod with selectable sleep timer EXB Expanded Bass and Reson8® technology for great sound Aux/MP3 line-in jack Snooze/dimmer bar adjusts Lo/Med/Hi brightness for clock display Full-function remote control Universal Voltage Adaptor 100 - 240V Battery backup iPod Compatibility: iPod Mini - 4GB, 6GB iPod 4th Generation - 20GB, 40GB iPod 4th Generation Color - 20GB, 30GB, 40GB, 60GB iPod Nano 1st Generation - 1GB, 2GB, 4GB iPod Nano 2nd Generation - 2GB, 4GB, 8GB iPod Nano 4th Generation (Video) - 8GB, 16GB iPod Video 5th Generation - 30GB, 60GB, 80GB iPod Classic - 80GB, 160GB iPod Nano 3rd Generation iPod Touch 1st & 2nd Generation - 8GB, 16GB, 32GB  (less)