Bluetooth headsets are like this – you either love them or loathe them. For those who wants the convenience of a Bluetooth headset but dislike the look of wearing one, enter the Invisible Bluetooth HEadset from BrickHouse Security. It doesn’t use any invisible cloaking device, but is just extremely small in size (smaller than a pencil eraser), cramming a half-functional headset which is a barely visible little earpiece that resides completely within your ear. A separate neck-loop microphone is required alongside a small remote control in order to hold a two-way conversation.