Skevos Mavros

I backed it on kickstarter, and it's one of the few hardware kickstarter projects I don't regret backing. Pros: The Hooke makes it really easy to record good quality binaural ("3D") sound to any external recorder with a stereo mini jack input. Cons: The Hooke app, at least on android, isn't very good - it's unreliable and unintuitive.