As distinguished from H2O Audio's earlier iS2, a waterproof iPod shuffle case without earphones, the company's new iSH2 Waterproof Headset ($80) is a combination waterproof headset and waterproof case, designed to be used together in one of two configurations. iSH2's case locks your second-generation iPod shuffle inside of a black and gray plastic box that provides access to its face controls, allowing you to mount earbuds on either a headband or…
