She is 91 & uses hearing aid devices for most of the day when not using the Headphones for her HD TV. Quite a few reviews complaining that they only last about 6hours. Well made, it speaks quality. I even wear them on days when I need to wear business casual clothes for work. Great for my lad. Its great to carry a phone, but if you want to run Strava while biking, it will quickly overheat - first mile or two. 5 inches long. It only fits smaller yoga mats. It is very sturdy and good quality. I tried Ultra Swim with no luck.