Kermit the Frog Water Resistant Stereo Portable Stereo Sport Case for iPod, Shuffle, MP3 players with built in remote, DK-M13 Water resistant portable sport case with 2 dynamic speakers for iPod, Shuffle, and MP3 players Headphone jack, MP3, CD line in Charges iPod when used with switching power supply adaptor Requires 4 AA batteries to operate which are not included