Bose ProFlight Headset: Not For Pistons
According to Bose, it may take several flights wearing the Pro-Flight before it becomes as routine as using a traditional headset and it’s right. It starts by selecting the proper Stayhear+ eartip size and Bose provides a pack of small, medium and large tips inside of the supplied storage case. Bose says the medium tips are the default size that fits roughly 80 percent of users. Also, you might find that you need one size in one ear and another size for the other ear. Experiment with this fitting process before going to the cockpit-it will save a lot of time and effort.