I have these headphones, they are great. Amazing price. I recently bought a pair of Bose QuietComfort Ultra and sent them back because I had nothing but issues

I have these headphones, they are great. Amazing price. I recently bought a pair of Bose QuietComfort Ultra and sent them back because I had nothing but issues with them and they were barely any better than the Anker's when working. Certainly not worth the price difference.