They have a neat multi-color led light on both sides and they sound good enough for him. Its not a deal breaker, but if you have a narrow foot, the sandal might feel slightly loose (and its not adjustable). Socks are very good, fit nice, and reasonably thick. I have narrow feet and these are snug on the sides which I like, but for someone with wider feet Im not sure it would be as comfy? I typically wear a size 6. We all enjoyed it. My wife loves them and says they are extremely comfortable. It did not fit the headrest in my Subaru Forester 2016. My fist pair and I love them. These really should be standard shoes for all healthcare workers really lol. I l love a shoe that puts good air between my toes.