Aquapac MP3 Waterproof Player Cases Designed with a built-in external headphone jack for your earphones An Armband allows you to strap the case to your arm so you can enjoy your sports activity hands-free with an elastic and Velcro strap Comes with a packet of re-usable, re-indicating desiccant Dimensions - 7.5 x 3.25 x 0.75