I would say for the price, these are a nice simple set of headphones. My husband loves the black and yellow color because he is a Steelers fan, so they won brownie points for that. They came very nicely packaged in a nice box. Great if you're planning on giving these as a gift. The Bluetooth paired easily and quickly to my phone. I got a little over 5 hours after a full charge. The sound is good and pretty clear. They are very lightweight and do fit pretty comfortably in my ears and they stay in while I work out. Overall, I'm happy with them and honestly, not bad for the price. Great for working and/or running. I have only been using them for about a week and I haven't experience any problems with them so far.
If you would like to try this out for yourself, you can purchase Aulker S330 Wireless Bluetooth Sport Headset - Yellow right now from Amazon!
Disclosure: I received the product mentioned above for free or at a discount for my unbiased and honest opinion. I was not financially compensated in any other way for this post. The opinions are my own and based on my personal experience with the product.