What the image is meant to represent is a metronome, which allows you to select the time signature as well as BPM, but rather than 'beeping' or 'ticking' in time, it flashes an LED (the sphere at the top).
The thought being, like me, other beginners must find it difficult to listen to the click, read the music and make sure that all of your limbs are in the right position at the right time, so by having a flashing LED metrorome (with a screw thread underneath for attachment) you can place it near your music and have a visual representation of the beat.
Stupid idea or a wow moment?













