iSymphony W2 120-Watt Wireless Micro Speaker System with Built-in Universal Dock for iPod (Black) Compatibility: iPod mini 1G; iPod nano 1G, 2G, 3G; iPod classic 4G, 5G, 5.5G, 6G; iPod touch 1G Expandable wireless micro music system--add as many speaker pairs as you like 120 Watts Peak Power/30 Watts Output Power Built-in universal dock for iPod Slot-loading CD player with CD/CD-R/RW compatibility