Bests & Worsts Reviews from Amazon

The headphone works as described. pros: 1. The sound quality is great when the noise cancellation is on. The volumne is higher when the switch is on and bass, mid and high are pretty clear. However, when the noise cancellation is off, the sound quality is much worse, even worse than the 10$ headphone and 8$ earphones I have. 2. The noise cancellation works. I think several aspect contribute to it. The ear cup will block a lot of ambient noise. There seems a circuit to cancel some low frequency noise. The volumne also goes up when the switch is on, which make the noise sounds smaller. 3. The price is probably the lowest you can find for a active noise cancellation headphone. The price should be between $35 to $60. 4. It includes a sony battery and an adaptor for split inputs of left and right. cons: 1. The headphone is on ear headphone. The earcups are too close to each other and the the headphone arm is pretty stiff, so the earcups put fair amount of pressure on my ear. My ear start to hurt after about 2 hours with it. 2. The arm is plastic, and there is no pedding or soft band between the plastic arm and your head. It compress the top of my head and cuase some pain. 3. The sound is poor when the switch is off. 4. The noise cancellation seems only work for some low frequency noise. 5. No carrying bag/case. Bottom line: I think it worth the price I paid. With the switch on, it is a pretty good headphone with nice sound and some noise cancellation ability.