Bose Noise Cancelling Headphones 700 - WhiteADJUSTABLE WORLD CLASS NOISE CANCELLING HIGH FIDELITY AUDIO UNRIVALLED VOICE PICKUP CAPACITIVE TOUCH CONTROLS STREAMLINED, LIGHTWEIGHT DESIGN RELIABLE BLUETOOTH CONNECTIVITY BUILT IN VOICE CONTROL* UP TO 20 HOURS Hear what you want, not what you dont. Our proprietary active noise cancelling technology uses microphones both inside and outside the earcups to monitor the sounds around you and instantly produce an opposite signal to cancel them out. With