Will be great if AI noise cancellation does work,
Verified Purchase(What is this?)
This review is from: Sony MDRNC200D.CE7 Noise Cancelling Headphones (Electronics)
This promises 98% reduction, sounds great! So I connected it to my mp3 player, pointed it to the source of noise a bunch of inconsiderate blabber mouths at work, press AI button, twice blink, and there it went.
Except that after several seconds the blink came back with a continuous hissing until I pressed AI again. And the cycle continuous.
I gave up, use my old MDR-NC60 over-ear 85% on the same mp3 player which still does the job. No idea why Sony discontinued this product.