The Aquapac 515 MP3 Player Case (Blue) is a dust-proof, sand-proof case that is guaranteed submersible to 16.4' (15 m). It is made from UV stabilized TPU material that provides comfort and protection. It allows normal use of an MP3 player while inside the case. The controls and click wheels of the MP3 player operate right through the case. It is designed with a built-in external headphone jack for the earphones. The case is closed using the Aquaclip plastic quick-action sealing system. It has a detachable, fully adjustable neck cord.