Im glad I got a high quality unit since I wear it 5 - 8 hours for work. it is suitable for all motorized and non motorized PWC , and small boats up to 4000lbs. They were comfortable and I never once had an issue with the incision. Love that they are flat and not J shaped. Thank u . The sizing chart needs to be corrected to match whats actually on the box. I fill it with all the stuff I don?t want inside the van plus my generator. Yet this order was surprisingly great and I bought a second pair after my first pair came and impressed me. I guess they are a ?budget? option, sacrificing some premium features for price, but in my option, they aren?t cheap enough to make it a good budget option for wireless earbuds. (REALLY extensive) research of all current stereo/L-R earbud offerings and ultimately , and very deliberately then selected and ordered this ExFit BCS-T90 solution because they were seemingly very deceptively successful in projecting that these can indeed be independently (L with one device -AND- R with a second device) paired simultaneously with two separate devices (work and personal iPhones in my instance).