It took me just a few minutes to sync this up with my desktop pc. I then synced it up with my iPhone and listened to music. It sounds pretty good. It’s definitely not as good as my Sony V6 headphones that encloses my whole ears (not to mention keeping my ears warm in the winter!), but for what this little headphone set is, the sound is better than expected and definitely acceptable. The major gripe I have is that there appears to be a second delay between video and sound while watching movies on my iPhone. This is not noticeable with audio but it can be distracting when watching movies. But you know what? I paid $24 for this thing, its wireless/convenient, and I can make and receive calls with it. I can’t complain. I’ll update this post after I spend some more time with it.