Cancel noise effectively for such small headphones...Occasionally picks up mobile phone interference Not the best audio quality...These fill your ears comfortably, and the active noise cancelling works pretty well, vastly reducing background noise at the flick of a discrete switch on the earphones themselves...However, what isn't acceptable is their tendency to pick up interference from mobile phones......

Our test unit produced solid bass, transparent midrange, and a slightly exaggerated high end, and it had the most effective noise cancellation we've heard in consumer headphones...Well-designed ear-buds can provide superior bass response and isolation from external noise than open-air headphones, but some people find them difficult to wear...The shredding method has been rewritten and adds many enhancements...

The compact earbuds weigh just 1.7 ounces with the battery...We kicked off our listening tests with the elder statesmen of punk rock, the Ramones, and their pile-driving beat sounded amazing...

Overall, I couldn't help but suspect that the tight fit of the earbuds was responsible for a large portion of the headphone's noise suppression capabilities -- and not necessarily the electronics...In conclusion, if you're accustomed to earbud style headphones, you might find these Sony's to be an improvement over ambient...Bass is mediocre and high end definition weak, but for...

One of the few noise-canceling earbuds, light, comfortable, durable Overpriced, clunky Adjacent to each 9mm earbud is a tiny microphone...Compact, volume control, carrying case, comfortable in your ears, mutes noise Noise canceling circuits not very effective, audio reproduction not as good as it should be I?ve been eyeing these things since I saw them for sale in Tokyo back in 2000...Annoying mid-cord...

I would not recommend these nor purchase them again...price, brand, promise, small size for travel noise cancellation barely functions I would not buy again or recommend...small bad design, little noise reduction Very poor and yet expensive product from Sony...