that is never a M 7 US that is a Women 7 US. I can see these being a great product to always have handy in the car and also for use with elderly/disabled people. The build quality on this controller is pretty good for the price and the controller feels solid. I just want to say that I have been in dialogue with the seller edn leisure and there customer service and service has been first class I had written a review on back of faulty product but situation has been resolved and all parties are happy thanks Scott I liked the color, the in-ear design. These cross bars are meant for this car, so I would think the manufacturer could have at least made them to a specification where they properly fit. You need to download some software (clear instructions in the pack) and then it just works. That was the primary intent. They fit perfectly OVER my ear. Its REALLY irritating.