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.
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.
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.
The $300 NC1 offers excellent sound and comfort in a lightweight design that delivers effective noise-cancellation.
Despite some downsides, including a high price tag, the Bose QuietComfort 20 offers the best noise cancellation in an in-ear headphone and should tempt frequent travelers looking for a more compact alternative to full-size noise-canceling headphones, such as the Bose QuietComfort 15.
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.
The Blackbox M10 Noise Cancellation Headphones are a versatile set that offer solid sound quality and a reasonably portable design for travel hounds.
With the freshly redesigned QC25 ($299.95), Bose has not only enhanced the sound and noise reduction of its flagship NC headpone, but made other small design improvements.
The Blackbox C18 Noise Cancellation Earphones are a great option for travel hounds who want superior noise-hushing capability and good sound quality in a reasonably compact package.
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