XtremeMac IPD-MCP-00 MicroPack for all Dock Connector iPods Rechargeable lithium battery pack with up to 80 hrs audio/8 hrs video play time Dual headphone jacks, volume controls and digital amplifiers Ideal viewing angle for watching video; Audio/Video line out Syncs and charges iPod with Apple USB or FireWire cable Compatibility: iPod nano (1G and 2G), iPod mini, 4G iPod with click wheel, iPod Color, iPod Video