This design was modelled in under an hour to convey a concept using techniques and tools within Pro-Engineer. When wearing headphones it becomes impossible to converse with others. To solve this problem the product below includes a microphone which can be used to channel a person’s voice to the user with the headphones still on. An inline set of controls allow the user to skip, stop, or play a track, adjust the volume, or change to the novel ‘listen in’ setting.