The doorbell camera 106 may further include a microphone and a speaker. In some implementations, the front cover plate 708 includes a microphone aperture 716 to allow sound signals to reach the microphone concealed within the doorbell camera 106. In some implementations, the device housing 702 includes a plurality of speaker openings 718 at its bottom rim surface. When the doorbell camera 106 is mounted onto a wall or doorframe surface, the speaker holes 718 are not visible from a gaze of a visitor approaching or standing near the surface, while still being able to broadcast audio messages to the visitor. In embodiments where the doorbell camera 106 includes both the microphone and the speaker, a remote user may review live video streams captured by the camera module of the doorbell camera 106, and have a conversation in real time with the visitor. In some implementations, both the microphone and the speaker of the doorbell camera 106 adopt waterproof features to deter water permeation into the electronic components within the device housing 702 and cause irreversible damages to the electronic components. Specifically, the waterproof features may be integrated at the openings 716 and 718 to deter water permeation such as from a jet or stream of water impinging on at least one of the openings 716 and 718. In an example, the microphone may be disposed inside the device housing 102, and include a sound input region offset from the microphone aperture 716. A hydrophobic membrane is affixed to a first interior surface of the device housing 702 and covers the microphone aperture 716 thereon. The hydrophobic membrane is configured to allow transmission of sound waves and block water intrusion from the microphone aperture 716. A sound transmission channel couples the sound input region of the microphone to the microphone aperture 716 on the front cover plate 708.