The sound is goodTheyre easy to put on & wearBattery life is excellentThe case is great & easy to see the battery lifeCharges super fast I suppose the allen screw will loosen over time but can be easily tightened. Being a stay at home dad/medically retired I dont have to leave the house for work and only head out in to town here and there so Im wearing these slippers for a good 14-16 hours a day and theyre still comfortable. I do like these slippers but I shouldve went with 11-12 instead of 9-10. Its length is aprx 7. Don?t know why I imagined it will come in a big box so when I saw a tiny one I was like ? oh sweet Jesus Lord, I didn?t payed attention and bought something for dolls ?. Some of the comments I got from people on the water, "wow those lights are bright! I would recommend ordering a size larger if u can for that perfect fit. I used plastic wall anchors (not included) to secure it to the dry wall when hanging heavy wet towels. Another aspect that could be improved is that the earbuds dont hold together magnetically - which is a really useful feature if dont want to lose your headphones.