So, this was the final stop on an extended trail of actual purchases of bluetooth wireless headphones. The $50 headphones from Amazon, which will go nameless, sounded fine for my purposes but had a deficient/defective bluetooth connection. Nuff said, returned. I got a set of Sony 650 on ear headphones that were about $120. Excellent sound, but hard and hot on the ears and would not stay in place if you were on the move. Not worth keeping at that price. Then the JBL Everest 700 headphones that generally go for $200, but I got for $150. Good tight sound and build quality, but they felt like i had a small brick on either side of my head. Not worth keeping at twice the price of the Bluedio UFO's.I ended up actually getting two pairs of the Bluedio UFO's. The sound quality is good for the price but the bass and drums is not as tight and distinct as one would really like. I tested all the headphones with Tracy Chapman's "She's got a ticket" which really hits both ends. When the guitar goes light and high, it should make you want to "fly away", but these don't quite get there. To get there will require about twice the money! For the money $79, these are great.The only reason I did not give the 5 stars is an oddity with the bluetooth reception. The first pair I ordered worked absolutely fine with my ZTE Imperial Max smartphone. So, I ordered the second pair and then there was an aggravating and persistent little popping and static that happened just enough to make me want to send them back. I could use the same phone back and forth with the two pairs and one would be good and one bad. Then I tried the bad set with my old Sansung Note 2 phone and they work absolutely fine. Go figure. But the bluetooth should not be so finicky. The ZTE worked absolutely fine with the Sony and several JVC bluetooth speakers, so why not with these?