I haver used the Mach 1 and the Bose in the CRJ. If you are not sure the Mach 1 is for you order it without the ear molds if you dont like it return it if you do like it order the ear molds and it comes out to the same price. Dont forget you will have to pay an audiologist for the fitting. Should add about $50.00 to the total price. I have had issues with my Mach 1 and lightspeed did everything they could to make sure I was happy with the product. Great comapny to work with!