How about a set of headphones that's able to analyze brainwaves and play music based entirely on your mood? Meet Neurowear's "MICO". Simply put, it consists of two components: specially-designed headphones and an iOS app. Continue reading for a video and more information.
According to OD: "The headphones come with a forehead sensor that analyzes the user's brainwaves to detect his mood, then connects to the Mico database via the iPhone application and selects the song that best fits his current state, from a number of neuro-tagged tunes. If your mood changes, and you feel the song isn't appropriate anymore, all you have to do is shake the phone to clear collected data and have the sensor scan your brain again."