Invisible Shield RockStick Speaker for iPod (Silver) Compatibility: iPod mini; iPod nano 1G, 2G, 3G; iPod classic 3G, 4G, 5G, 5.5G, 6G; iPod touch; iPod shuffle 1G, 2G Durable aluminum construction provides excellent sound quality in a stylish silver color Line-in supports all other MP3 players Full-function remote control Powered by included AC adapter or four AAA batteries