I bought these bluetooth headphones to use with my phone and laptop. I absolutely love the quality of my music and movies... I don't experience the lag that others have posted in their reviews.My only problem I have with this headset is the quality of the mic. I needed a wireless headset to use for Skype. It works, and again there's very little to no lag, but the quality sucks! My friends say it sounds as if I have them on speakerphone. They can hear me and make out what I'm saying 90% of the time, but it's just annoying that I pay a high amount for headphones with a mic when the mic hardly delivers.On a brighter note - they are extremely comfortable! I let my mom listen to her favorite song through these headphones and now she wants to buy a set for herself! Also, I will confirm that they have an outstanding battery life. I plugged them in and charged them when they first arrived in the mail (only took maybe 2 hours) and they played all evening and all night. (Yes, ALL night, I accidently fell asleep with them on lol, which should also tell you how comfortable they are!) My music was still playing loud and clear the next morning, and the battery wasn't even low yet...