Already had 2, ordered another. Also ordered the N9 with a discount code making it 17.99. If it is as good as the N7 with the added lumens, features, and 18650 battery size, that is a good deal also. Love the rotating head that actually works well.
Mpow has been banned from Amazon because they were buying positive reviews. These appear to be roughly comparable; there are a ton of different Chinese sellers using various generic parts to make decent noise canceling headphones. I’ve bought 3 different sets from various companies, and while there are some minor differences, they have all been worth the $10 I paid for them. Don’t expect perfection, there is a slight white noise floor in the noise canceling of all of them I have tried and the sound quality is decent, but not amazing. But I think you’d have to pay hundreds of dollars to do significantly better.
It appears that MPOW (and Aukey, and others) got banned because they were paying off reviewers. Unfortunately an all-too-common practice. Their ban conveniently came right after about 13 million “review for refund” records got discovered/leaked.