The Bluetooth clip on microphone is super useful for the solo piper. I love that you are hands free, but more importantly are not restricted by the length of an external microphone cord. Pair with your IOS device and don't worry about wandering away from the iPad/iPhone. On the negative side, an iPad/iPhone is pretty useless outdoors on a sunny day. If I could pair with one of the Blair tuners with readable displays outdoors, I'd only need one tuner. Don't think this is possible though.