Bone-conducting headphones discreetly hidden in a hat

Allowing you to discreetly listen to music or talk on the phone all day without blocking out outside noise/ disgracing your family by wearing a Bluetooth earpiece, the Cynaps is a normal-looking ballcap with a rechargeable, built-in headset that wirelessly pumps crystal-clear audio from a mobile device directly into your inner ear using skull-vibrating "bone conduction" technology.

Along with a mic, the underside of the bill conceals a flat control panel with buttons that pick up a call, change/ pause a song, and even manage volume.