I'm talking about the WH-CH720N's use of Sony's A1 chip. That's important because it provides the brains to the 720N's active noise-cancelling (also known as ANC) technology, just in the way the ...

But they are a step up from the CH-720N, the $150 entry-level model in Sony's noise-canceling headphones line that I like, especially when they go on sale for $100. Also, like their predecessor ...