Warm natural sound with a cool futuristic look
The Bowers & Wilkins C5 headphones have it all — rich, dynamic sound, a secure, comfortable fit, plus up-to-the-minute convenience and style. These well-sorted in-ears deliver amazingly powerful bass with warm, natural mids and highs that make them perfect for listening to just about any genre of music. A unique, adjustable cable loop keeps them gently but firmly in place as you move. They also provide convenient control of your favorite Apple® device, including hands-free conversations using your iPhone®. And along with their siblings, the B&W P5 on-ears, we think these buds are among the coolest, best-looking headphones out there today.

The C5's infinitely adjustable Secure Loop design helps keep them firmly and comfortably in place. (Black model shown)
In-ears that really stay in
Most in-ear headphones stay in place reasonably well, as long as you're sitting still. But once you're on the move it can be a different story. The C5s feature an innovative Secure Loop design that gently hugs the inner rim of each ear, holding the headphones firmly in place no matter how bumpy the ride. The loops can be easily adjusted for a comfortable, custom fit. These buds also utilize a solid Tungsten sound tube that balances them towards your ears, further improving the security of fit while increasing isolation from outside noise. And because the noise reduction is passive, no batteries or active electronics are ever needed.
Advanced design for better sound
B&W knows great sound — their professional monitor speakers are found in some of the world's finest recording studios, Their goal for the C5 was to create the same natural and realistic sound in a headphone that their speakers are famous for. One key feature that helps achieve that goal is the Micro Porous Filter. This filter uses hundreds of microscopic steel balls clustered at the end of the headphones that act as a sonic diffuser, enabling the C5 to deliver pristine, natural sound while also providing the kind of spacious performance that you'd only expect from open-air headphones.

The Micro Porous Filter acts as a diffuser to create a more natural, open sound. (Titanium model shown)
Built-in controls for iPod®, iPhone®, and iPad®
A remote built into the headphone cable lets you conveniently control music playback without having to dig your iPod or iPhone out of your pocket. You can even take calls on your iPhone hands-free, thanks to the in-line microphone. The C5's supple, plastic-coated headphone cord resists tangles like a champ. And the zippered, pocket-sized storage case makes a nice home for your C5s when they're not in use.
From the review Bowers & Wilkins C5 In-Ear Headphones Earbuds of the future
"Sound was robust and clear; with palpable bass and smooth, detailed midrange. High frequencies were just ever so slightly rolled off at the very top. I also greatly enjoyed the way the C5s spread the instruments across a wide and moderately deep soundstage, rather than concentrating them right in the middle of my head. This is a pretty neat trick that you normally only expect to hear with open-air, around-the-ear headphones."
— Dave B., Crutchfield A/V Writer