Sound quality - Probably the BEST headphones I have ever had under $50. Simply Amazing sound quality. These headphones EVEN got my 11 year old's attention in hearing more than what she hears in other headphones. Like one who has bought a truck and doesn't go back to driving a car, I just don't see me buy other brands at this time. If these by chance go belly up, LOL, I have to get another pair.They are VERY comfortable, they handle long periods of wearing them w/o me feeling the "pinch" that other headphones sometimes give you. I am not sure what they are doing in the technology that allows me to hear "More" than my JVC headphones. These OneOdio I have NEVER heard of them but I am talking about them whenever I get into sound conversations. Would I buy them again?! ABSOLUTELY! When monitoring, the sound is "flat" and allows for adjusting on your own. Everything is balanced, bass, mid, treble. I like the TWO cables they come with. The 1/8" and 1/4" plugs on the headphones allow for interchangability. These headphones are lightweight but VERY SOLIDLY constructed and built like my tanks(JVCs). To be able to fold them and put them in a nice bag that they came with too! Thumbs up! A bonus is that the L and R are "sewn" inside the cave cushions in the headphones. I stop short of saying "I Love these headphones..." but I DO LIKE THEM A LOT! I've tested them with laptops, keyboards, mixing boards, mp3 players, guitars etc. The sound quality makes you feel like you are in a "Live" atmosphere everytime you listen to whatever through them. A MUST BUY! Buy two or three if you can, them give them as gifts this Holiday Season, be a blessing to someone else who respects great sound quality. If One Odio wants to send me another pair for testing, LOL, I'd be more than willing to test them and review the next pair. If not, I'll buy another model myself and do another review. OneOdio keep being EXCELLENT! Thank you!

I am so pleased with my Sleep Headphones/Headband! It is attractive and lightweight, perfect for sleeping, walking, or just to wear while working. But even better than the looks and comfort is the quality of sound and easy Bluetooth connection to my devices. Customer care is top notch and and I can’t recommend this product highly enough!

Just received my headphones today and I have to say I am somewhat impressed with how durable they seem. Sound quality is pretty good. They are alittle on the bulky side but nothing that would steer me away. Love the fact that they retracted at the push of a buttom and that they are reasonably priced. Now it's time to see if they will stand the test of time.

I am quite a sound junkie, so I am extremely critical of all audio products that I use. That being said, these headphones are excellent! I have nothing negative to say about them.They have exceptionally clear sound quality, as good if not better than any of the headsets I have used that cost many times the price of these M40x's. They are very comfortable. I can wear them for hours without any discomfort whatsoever.As a musician, I really appreciate the flat tuning. It allows me to hear my music with the sound color that the artists intended it to have and allows me to hear my own accurately so that I can adjust properly. For those of you who don't know, Tuned Flat basically means that the bass, mid, and highs are all played at equal levels. Most headphones are V-Shaped (they boost the bass and highs). And if I ever find that I want V-shaped sound, it is very easy to use the equalizer from any music player to create a V-Shaped sound, much easier than to go from V-Shaped to Flat.If you are looking over-ear headphones, get these! You will not regret it. They are an absolute steal for their price! Don't waste your money on Beats by Dre headphones. These are much better and sell for 75% less. If you want V-Shape headphones like Beats, get the Audio-Technica ATH-M50x.

I bought a pair of headphones before because I like to listen to music while I sleep. Normally, headphones hurt my ears, but if I use earbuds in my sleep they make my ear sore and hurt. So I decided to search for a good, cheap light-weighted pair of headphones. These are the types of headphones you'd mostly find on an airplane, but I find these are slightly better. I found the sound to be quite pleasant. It never cut out or bugged unlike other more expensive headphones do from time to time. Obviously, there is no bass, or noise cancellation, I mean, what do you expect from a pair of 5.99 headphones? My biggest concern was if they would break since I am a side-sleeper, but I figured since they were so cheap I could buy another pair.. NOPE! Just like the bio says, they are very flexible, and do not break as easy as I thought (For what they are at least, it is still plastic after all!) It is even comfortable when I have my head on one side, I hardly even feel them, and the cord isn't as long, either. Overall, great headphones if you're looking for a cheap, easy pair to bring with you to sleep, in your car, or airplane! I only bought the black one to see how they do, but after being so satisfied I might buy a pair in red, too!

These are my second pair by Picun and I am very satisfied... The bass in these headsets are overwhelming for the price of only $30 what a bargain. And the battery life is good standby time is like 5 days... or more.. the first pair I bought were a different model but was very satisfied... Why buy $200 headphones when these in my opinion sound much better

I am very impressed how far this bluetooth headphone can go! I can go anywhere in my house without any single disruption of audio basement, 1st floor 2nd floor! Seems limitless! Audio quality is good it’s not boss or other high end sound but it works for me! Also I am able to get phone calls without interference. The person on the other side can hear me well unlike some of other headphones No complaints so far

I am genuinely impressed with these headphones. I initially bought it for my best friend as a Christmas gift but she raved about it so much, I bought a second pair for myself. It feels like I'm listening to all my music for the first time. My old headphone weren't playing any of the lower frequencies and this sounds like it has a built in subwoofer. I can hear entire instruments which were all blended together before. This is a must buy for music lovers who don't want to spends hundreds on a high end headphones.