These are a great set of earbuds with decent quality sound that have a very long battery life (10-12 hours, legit). That is the primary reason for my 5 stars.My use is unusual. I use them for sleeping, to listen to gentle rain and thunderstorm sounds all night long. (I live near a major roadway.) I sleep on my side mostly, so it's always one ear in, one ear out, with the "out" side just laying near the pillow. Every time I wake and switch sides, it's almost instinctive now that I switch which side is in (the one away from the pillow). No manufacturer makes a 10-hour battery ear bud that you can sleep flat onto a pillow (Bose makes a set that comes close for comfort, but they play their own crappy 20-second loops, not a BlueTooth connection to a source, and it only lasts a few hours before needing another charge).They are durable for the most part, but I guess during sleep I may stretch that loose end a bit, so inevitably, the flat wire cord seems to sustain some internal damage. After about 6 months of use, sound comes and goes unless you hold that wire "just right". And then it's out completely, and time for a new pair.The product itself has hundreds of knock-offs. Check the USB connection. This one has a standard, newer USB-C type. Some of the older ones use their own proprietary connector or the really old type, and they tend to fail faster.The rubber buds sometimes come off in the middle of the night (from the loose end), but that's on me. Fun to find where it went, in the bedding mostly, sometimes rolled off onto the floor. Again, it wasn't really designed for use while sleeping. But they generally hold tight.Sound quality is excellent. If lying on my back, it really delivers a nice stereo sound. And it's easy to adjust volume as well. Pairs easily for BlueTooth also.Overall, for the money, a decent product. And one of the better variations available.