A protective case for an electronic device includes a main housing and a lid. The main housing and lid are removably joined to define a water tight volume receiving an electronic device. The electronic device includes an earpiece having a speaker and microphone positioned thereon. The lid includes an earpiece port formed therein proximate the earpiece of the electronic device. A membrane assembly is attached to the lid by a compliant adhesive, the membrane assembly transmitting sound to the ear piece port. A noise isolating assembly attached to the lid. The noise isolating assembly is positioned about a periphery of the earpiece isolating the earpiece from an additional sound source.