I was looking for a new pair to replace my old Bluetooth pair.I like the fact that, unlike some BT headsets, this pair connects to multiple devices quite seamlessly. I have them connected to both my iPhone and my Windows PC so I can stream from either. This is a big plus for me.The Power On/Off upon replacing them into the case is also a plus, eliminating one extra step of manually powering down/up.I've switched out to the smallest size earbuds which helped to keep them in place, but I wouldn't use these headphones for workout - I don't think they would stay during vigorous exercise.I can attest to their claim of Ipx5 waterproof - I almost panicked when I dropped one into the kitchen sink full of water, but it didn't die on me.The user manual is written in good English. It was not clear to me where to tap when they say "Long Press" or "Double Click" since there's no button. It took me a while to understand I needed to tap on the stem of the headphones.Users may love or hate its charging via USB-C. I happen to already own other USB-C devices, so it was not an issue.A fully charged case could charge the headphones three cycles. I wish this information was included in their manual. It's only indicated on the product description page on Amazon.