The disclosure relates to a case for a handheld electronic device and an electronic device. The case comprises: a housing and a lens. The housing has a housing surface; and a first opening in the housing surface. The lens has a cover surface being disposed adjacent at least a portion of the housing surface; an indentation formed in the cover adjacent the cover surface, the indentation being disposed between and forming a cavity in the case between at least a portion of the housing adjacent the housing surface and at least a portion of the cover adjacent the cover surface, the cavity being elongated along at least a first axis; and a second first opening formed in the cover providing fluid communication between the cavity and the cover surface. In the case, an audio transducer for the electronic device is disposable in the housing at a location underneath the first opening, placing the audio transducer in fluid communication with the cavity; and when the lens is disposed on the housing surface a periphery about the indentation is sealed against an opposing portion of the housing surface.