Its very nice to be able to adjust or disable ANC with the switch. I agree with most of the critical reviews on this mouse. I bought the size 12-18 month in May, her first birthday was May 1st. One reviewer here said at times when he took his headphones out it left the Comply tips in his ear - only to be extracted using a precision tool. Decent Sound QualityCons1. 1) whereas top-notch integrations of ANC with, e. These were just what I needed for going to the YMCA pool. I liked them, just hard driving with them. I love the style and color. I cant even tell that there is a shield on the watch.