Headphone

All of Apple's computers feature a headphone jack or sound output of some kind, but only a few of them offer a recording input. The iMac includes one, as well as the 15-inch MacBook Pro and the Mac Pro desktop, but you won't find one on the MacBook Air, Retina MacBook Pro, or the 13-inch MacBook Pro.

So what's an audio geek to do (aside from invest in a decent USB sound card)?

Well, in the case of the 13-inch MacBook Pro (old and new), Apple includes the option of a switchable audio port than can be more

Did you leave your heart in San Francisco? What about your headphones? Well, here's your chance to get them back. This week, in honor of the city where CNET is headquartered, we're giving away a pair of V-Moda Crossfade LP Custom over-ear headphones with a San Fran theme.

Those with their ears to the world of audio accessories know V-Moda to be a reputable maker of stylish, low-profile earbuds that's branched out into headphones and, more recently, a headphone amp that's also an iPhone case.

The company's Crossfade LP Custom headphones let you choose from a wide range of plate color options, as well as stock engraving graphics (numbered jersey, crown, skull snake) or your very own custom logo. In this case, the headphones are already designed for you with swappable decorative plates featuring the Golden Gate Bridge and a cable car.

Normally, these San Francisco-centric earphones would cost you $199, but you have the chance to get them for free. How? Well, there are a few rules (including not calling San Francisco Frisco), so please listen up. more

On today's 404 episode, we'll solve the mystery of phantom cell phone vibrations and why we're so often tricked into thinking our phones have a mind of their own. One psychologist from the University of Sydney thinks that it has to do with electrical currents running through parts of the body surrounding the phone, while another professor of psychology believes it's in ours heads, that our addiction to technology has made us paranoid about e-notifications.

Walking around New York in this heatwave is enough of a workout for anyone these days, but some gym-goers in Canada are so sick of skinny people making them look bad that they've issued a ban on anyone that can't be described as "plus size."

According to the NY Daily News, Body Exchange gym in Vancouver claims to be a "safe haven" for overweight people that feel scrutinized when they work out next to those without an addiction to food. Unfortunately, we'll have to defer to Richard to comment on this story, as neither Jeff nor I have ever been inside a gym.

As some of you may recall, about two months back we partnered with our good friends at Outdoor Technology to bring the CNET audience an awesome deal on Bluetooth headphones. Not only did we sell out, but Outdoor technology was kind enough to give the CNET audience extra product so no one went home empty-handed. This week, Outdoor Technology is back with an even better deal on its top-selling DJ Slims wireless headphones! Grab a pair of the awesome DJ Slims for less than $45 with free shipping.

It's time for all of you to jump on the Bluetooth more

It was probably 10 years ago when I heard my first custom headphones, and I couldn't get over the sound. It was an Ultimate Ears UE-5 model, and the level of detail was so much better than any previous headphones I'd tried. The custom earpieces' superior noise-isolation dividends were also part of the appeal, because as the background noise level goes down, the apparent detail goes up. With less environmental noise overpowering the subtle/quiet details in the music, I could listen at lower volume levels. Once you've experienced what custom-molded headphones can do, it's hard more

Is the music from your iPhone sounding a little lifeless? The Vamp could bring your audio back from the dead with a built-in headphone amplifier and digital-to-analog converter (DAC) that bypasses the iPhone's audio circuitry.

Designed for Apple's iPhone 4 and 4S, the Vamp is also a very solid-looking case that's made from "aircraft-grade metal." Inside, there's a high-quality DAC and two 150mW amps (at 32 omhs) to drive headphones of various sizes. A rechargeable 2,200mAh battery powers the setup for up to 8 hours, which isn't very impressive for a high-end headphone amp.

It also serves as a backup battery for your iPhone, which will undoubtedly leave you with even fewer hours of music.

I've reviewed my share of portable headphone amplifiers, but ALO's new Rx-MK3B just might be the best on a number of counts. First, the amp is compact, just about the same size as an iPhone, but twice as thick. ALO invested two years of engineering and development time in the Rx-3B, and makes it in the U.S.

The Cypher Labs AlgoRhythm Solo is a portable digital-to-analog converter designed only for use with iPhones, iPads, and iPods, but it won't work with computers (it's not a USB DAC). There are precious few portable DACs that can more

Head-Fi is a national headphone club, and I went to the local meeting in Babylon, N.Y., last Saturday.

The vibe was friendly, and it was great to hear Head-Fi members' home-built gear, but there were a few surprises popping up from the headphone and electronics manufacturers in attendance.

Logitech Ultimate Ears' Personal Reference Monitor in-ear headphones feature a new twist on custom-molded-to-your-ears headphone design. Lots of brands now make custom in-ear headphones, and Logitech's have been among my favorites for years, but the upcoming Personal Reference Monitor takes the personalization to the next level. Once your ear canals' "more

Headphones are among the most popular products on CNET, and, not surprisingly, many of you are looking for a pair that delivers a lot of bang for the buck -- and so are we.

Earlier I put together a list of headphones that cost less than $100. While that list included some models that you could pick up for less than $50, the ones I've rounded up here all come in under $50. Like the previous list, it's a hodgepodge of products, with a mix of in-ear, on-ear, and over-the-ear headphones, and even a few Bluetooth models.