With people traveling all around with the need to listen to music, the want of headphones with effective noise cancelling have increased considerably. One such headphone with great sound as well as superior noise-cancelling feature is the Audio-Technica ATH-ANC9 noise-cancelling headphones. Let us have a look at these pair of headphones. 
Design and features The Audio-Technica ATH-ANC9 lets you to change the level and frequency of the noise cancellation with three different modes, one meant for commuting by public transport, one for the office, and one for home. The first cancels 95 percent of noise at 200Hz where jet engine rumbles lives, while the others operate at 300Hz. Office mode cancels 95 percent of noise in that range while home mode only cancels 90 percent, but while using less battery. Blue, red and green indicator LEDs correspond to transit, office or home mode, respectively. The headphones use a replaceable AAA battery. But once the battery dies the ANC9 won’t stop playing music keeps on playing even the sound characteristics will change. It also uses a cable that can get tangled but the overall build quality of the headphone’s design is simply excellent.
