Very dissatisfied. Lost charging cable. Can't find a replacement and therefore can't use it. Wasted my money since it no longer works and return date already passed.Appearance: They are good-looking headphones, but they hurt my head.Assembly: Pull them out of the manufacturer's packaging and charge them to full. Pair them to your phone or computer and you're ready to go.Thoughts: They're not bad, but I'm not sure I consider them a good value compared to other bone conduction headphones out there. I found them to not be very comfortable after wearing them for a few minutes, but maybe that's just my head type. I do have a set from one of their competitors and that set is much more comfortable, but costs more money. If they work for your head, these might not be that bad.I like the feature of pausing the music when removing them from your head. It's a nice touch. 4/5Overall: Not Bad for Bone ConductionI ordered my first set of bone conduction headphones because 1) I've never found a pair of in-ear earplugs that were comfortable to wear and use, and 2) having developed a moderate case of tinnitus after years of playing music, the thought of by-passing the ear and using bone conduction technology to transmit sound seemed like a worthwhile idea.Wearing these headphones proved to be something of an issue. The headset is one-size-fits-all. I'm rather tall and I found it initially difficult to find a comfortable position for their placement. The ideal position is directly on the cheekbone adjacent to the ears. My best position was significantly below the ear with the headband slightly loose behind my head. Inevitably, there was some loss of audio quality. I found them painless to wear but some may find them uncomfortable.Audio quality is surprisingly good given the price of these headphones, they surpassed my initial expectations. The technology actually works. But if you're an audiophile (I confess to being one) who listens to more complex music like Classical or Jazz, you might find these falling short in providing musical details. If you listen to a lot of bass heavy music, you might be disappointed in their lack of a robust bass response. Their sound is a bit on the bright side with a tendency towards sibilance in higher frequencies. Long time users of premium headphones will need to adjust their expectations if planning to try these.In other words, I found their sound quality good but a bit generic. I liked how they allowed me to hear ambient sound without difficulty. As for their noise-canceling properties, given music entering through cheekbone vibrations and ambient sound entering unimpeded through the ears, I found that difficult to judge. I'll have to take it on faith that there is some, just not enough to make me aware of it. Maybe that's the point. They allowed me to hear sound unencumbered by the annoying ringing in the ears caused by tinnitus. If you have a similar problem, this technology may be a solution.Long periods of wearing these headphones were not an issue. I found them comfortable and reasonably stable on my head, even with their problematic fit. The magnetic charging is a really nice touch. These phones arrived 60% charged so I completed it before use. The charging light changes from red to blue when finished. Battery life appears to run around 10 hours or so, depending on how frequently you take them off. The music stops and starts again if the headphones are replaced within 15 seconds. The enclosed instruction "manual" consists of several short, ungrammatical sentences in several languages. It's bare-bones help at best. If you're confused by anything, keep working at it until you understand what to do. The bottom-line: a really interesting new technology that actually works. These phones have a good if slightly generic sound quality that will probably satisfy users who don't have unreasonable expectations.I have a Vidonn bone conduction headset with a built-in boom mic and the AfterShokz OpenComm to compare against this headset. I expected it to sound better than the Vidonn but not as good as the Aftershokz. And that is exactly my experience.What interested me in this set is the seemingly unnecessary addition of AptX support. My initial reaction was that bone conduction sound quality isn't high enough for AptX to make a significant difference. And although I think my original reaction is sound, it is hard to compare products from competing companies. Nevertheless, the Aftershokz has a fuller sound that I prefer over both of the other headsets. And more importantly, the OpenComm headset has a superior mic to the others, even though the Vidonn which also has an attached boom mic. Now that said, the mic on this headset is actually better than the Vidonn in that I didn't have any problems with the sound coming in and out or with a lot of white noise in the background. I had too many issues with the mic on the Vidonn to ever use it for calls.From a bone conduction headset perspective, this is a reasonable headset. It's more compact than the others I have because it doesn't have the boom mic, but it isn't a dramatic difference. There is no adjustability to the headband so you just have to try it and see if it will work for your head size and shape. I find this headset a little harder to position for best sound compared to the other two, but it does have a sensor that stops playback when you remove the headset. This works most of the time although there is almost always a delay in stopping playback.For anyone looking for an inexpensive bone conduction headset for outdoor activities with a decent mic, this is an OK choice. But just know that Aftershokz products cost more for a reason.These Vocalskull headphine work well, but is not nearly as comfortable as my other bone conduction headphones. The audio is fine, but not excellent. Overall, I give these 3.5 stars.After wearing them even for just a couple of minutes, they start hurting ... They hurt right behind my ears... I was curious how they'd work because I didn't know what bone conduction was .. I feel like other people can hear whatever I'm listening to but that doesn't really bother me... Was hoping they'd work for when I fall asleep with earbuds in, just replace the buds .. but I can see these are not going to be comfortable enough for that .They were big and bulky feeling,