Bose QuietControl 30 wireless headphones review: A nearly perfect set of active noise-canceling earphones

Bose first brought its active noise-cancelation technology to its earphones with its QuietComfort 20. Until then, ANC headphones were bulky affairs. The closest you’d get to compact was if they collapsed down small enough to be jammed into your carry-on bag. Not so the QC 20s. The earphones, with their inline controls and combination battery pack/ANC