Bose says Beats' Studio and Studio Wireless headphones, soon to be owned by Apple, copy five of its patents.
They're refurbished, but also backed by a one-year warranty. You'd pay at least $100 for them elsewhere.
While they may not be quite as comfortable as Bose's ultrapopular QC 15 headphones, the Harman Kardon NCs offer slightly better sound and have a built-in rechargeable battery to power the active noise-cancellation circuitry.
This popular pair of cans lists for twice the price. It features inline controls and can fold up to ride inside the included carrying case.
AKG has introduced two new noise-canceling headphones, the $349.95 K 495 NC and $249.95 K 490 NC.
Parrot's second-generation Zik weighs significantly less, offers better sound quality and noise-cancelling, and is loaded with features that are customizable via new apps for Android and iOS devices (and Windows devices in the future).
If you can't afford Bose's QuietComfort noise-canceling headphones, the attractively designed and more affordable Sony MDR-NC200Ds are worth your consideration.
Monoprice's Noise Canceling Headphones are about 70 percent as good as the Bose QC15s for a little more than a third of the price.
Level up your Galaxy device with Samsung Level, a new range of headphones, earbuds and Bluetooth speakers, complete with Android app.
We compare these two often confused headphone types on the New York City subway system to determine which works better at blocking out the noise.