Inevitable product. My fitbit buzzes all the time for this or that. Texts, phone calls, reminders, etc. It looks like a great idea for a drummer. I bought this tuner. It`s kinda like this tiny tuner that clamps on and hides behind the headstock. When you`re not tuning, it flashes to the beat you're strumming. Good-bye click tracks. I can see a real use for this. Especially when you can "feel" the beat.