I recently buy a ubon headphone first of all it sound was great but after 2 , 3 days it started crackling of noise I am not satisfied about that . The headphone is made up of average quality of plastic . It has no bass . The one end of headphone the earplug was opening . So right now I can’t were the the headphone because one earplug has opened . And the the main problem was that the power switch button of headphone present in the middle was not working properly . It was a basic headphone the quality of wire is average the sound is good but some times crackling sound came out .