This document summarizes the development of a smartphone accessory product for a customer named Tim Wambaugh. It outlines 7 stages: understand the customer's goals of controlling his iPhone remotely while running safely in a waterproof case; explore similar existing products; define specifications for a hard plastic iPhone case, adjustable nylon belt, bottle holder, and remote control; ideate initial designs; create prototypes; refine the prototypes based on feedback; and present the final product which includes an iPhone case, adjustable nylon belt with front and back pockets, remote control, and bottle holder. An Autocad video demonstrates the final product.