Alesis JamDock Practice Dock for iPod Practice deck with Universal Dock for iPod Inputs: two 1/4", line/guitar switchable, summing to mono Outputs: two 1/4" stereo line, 1/4" stereo headphone Can be used tabletop or mounted on racks or stands with e-percussion Module Mount, sold separately Compatible with iPod 3G, 4G, 5G, Classic; iPod nano 1G, 2G, 3G; and iPod Touch