Instruct: Classify Amazon reviews into positive or negative sentiment
Query: little to no noise cancelling and picks up interference

Connected to an iPhone in noisy city environments (trains, streets, etc), the noise canceling was completely ineffective. (I haven't yet tried it with the steady background hum you'd find on an airplane.) It also picks up interference from my cellphone, making it wildly annoying even as straight noise-isolating earbuds. And as other people have noted, the heavy and poorly placed mid-line control makes it impractical to wear these things unless you place the control into a shirt pocket or are under 5 feet tall and can place it into a pants pocket.