Medelec M11 Pro V4.0 Wireless Bluetooth Sports Headphones sweat proof Noise Cancelling Earbuds Stereo Headset Neckband with Mic Snapshot Function for Smart phones Bluetooth-enabled Tablets Black

I just received these headphones in the mail and went to the gym subsequently. The design is great and the headphones fit great in the ear. However, there was a problem when i started playing the music. The left earbud's volume was significantly less than the right earbud's. Keep in mind, this is just hours after receiving the headphones. Another annoying thing is that the headphones don't automatically connect to the bluetooth on my phone that I keep on at all times. I have to go to the settings on my phone every time and connect to the headphones. Hopefully this was just a defective unit, because according to the other reviews, these headphones are great.6/21/16I had received a defective unit prior. The seller was kind enough to contact me and send me a new pair free of charge. I love these headphones. Unlike other bluetooth headphones that are heavy and protrude out the ear, these don't stick out the ear. The sound quality is good and the headphones look great!

There is one bad issue with these which is they don't connect automatically to my iphone and I have to go in the menu ever single time to connect them. Other than that, they are very comfortable and fit perfectly in the ears. I wish the connection issue wasn't so annoying.

I run with these and love them. They sound great and don't fall out of my ears.

I loved this product... it's definitely what I expected and got here right on time. Easy to use.

Horrible delay. Unbearable to watch movies because of sync problems. Only plausible for listening to music. I gave it to my brother and he liked it, so good for him, else I would have returned it.

Extremely poor audio quality.There is an imbalance of sound, the left side is much louder and the left side is too bass heavy so the sound sounds muddy.Completely worthless, returned after 10 minutes of use.