Bone Conduction Headphones - Open Ear Wireless Headphones Bluetooth 5.3 Sport Headset with Mic,Built-in 32G Player Memory Sweatproof & Rainwater Proof Lightweight Earphones for Running, Gym, Cycling

Love the long lasting hrs. I work 10 hrs or longer soThese work for me.

This is my first bone-conduction headphone so I don't know what the technology is capable of.In the box you get the headphones, a carry bag, retention strap, ear plugs, a manual, and a proprietary USB cable.I'm not sure of the purpose of the ear plugs, isn't the point of bone conduction that you can still hear ambient sounds?I'm also not sure what the retention strap is for either. The headphone stay place extremely well, even when I knock my head back to drain the dregs from a Red Bull. It's also far more comfortable than earphones and avoids the sweaty ear problem of over-the-ear headphones.The sound quality is acceptable, there is some distortion at the high end and the bass is underwhelming. Considering the device isn't sitting in your ear, the quality is better than I expected. I wish more runners and cyclists would use something like this so they could react to other road users.The instruction manual is actually useful and the English isn't so poor as to be unintelligible. It has several features I really like such as an on-request verbal battery level message and the ability to toggle from sequential to random play mode. I got over nine hours of play time before the first low-battery warning and it was still running after ten hours.The only reason it does not get five stars is the proprietary USB cable. There's room in the device for a micro or C type USB port but they use a magnetic attachment. If you lose it or it breaks you have to throw the entire headphone away. The USB transfer rate I got was less than 1M/min - it took 4 hours to transfer 8Gb of music. This is the transfer rate we got with USB 2.0. So, yes, one star off for the cable.Update: I contacted the seller and they confirmed they do not sell spare or replacement USB cables so that's bad.

I loaded some music on the headphones and they work fine, however when I plug them into my desktop to load more music they are not recognized by the computer. I can not figure it out so I am returning them.