5mm headphone cable to the controller (allows for stereo and use of microphone) was taped over with very shoddy masking tape. Soft and squishy, yet firm enough to walk on gravel. Ive tried ACT and equate dry mouth wash and they are both fine and mild enough not to burn which is good but this Colgate definitely works much better. This is a gift for my 12 years old grand daughter. 0 in practical real environments, but after a few weeks, it no longer connects, does not ring and unable to establish connection. , so I returned them even though it made me sad. They are the best river shoes that I have found. Just so annoyed at the fact the delivery driver lied and left it outside in the rain when it stated on tracking handed to resident. But it came with out cracks so Im happy. Normally I wear a size 10 but my toes were up against the front of the shoe.