While not a quantum leap forward over the QC35 IIs, the Bose Noise Cancelling Headphones 700 offers slightly better noise canceling, sound and call quality.
Bose Noise Cancelling Headphones 700 - CNET
Bose Noise Cancelling Headphones 700 review
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Bose Noise Cancelling Headphones 700 review - CNET
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