Sylvania Dock and Clock Radio PLL Dual Alarm for iPod and iPhone Compatibility: iPod mini; iPod nano 1G, 2G, 3G, 4G, 5G; iPod classic 4G, 5G, 5.5G, 6G; iPod touch 1G, 2G, 3G, 4G; iPhone, 3G, 3GS, 4 Dual alarms for separate wake times; set both times, then activate either or both Wake or sleep to iPod/iPhone, FM radio, or buzzer Battery backup for power outages, with two AA batteries (not included) Auxiliary input for external audio devices; 3.5-mm audio cable included