A:Answer Hi Wallace, Thank you for choosing Sony! You can adjust the effect of noise cancelling using the Sony Headphones Connect app. Please check on this Help Guide link on adjusting the noise canceling function: https://support.am.sony.com/release/Help_Connect_4730254137.pdf Also, changing the earbud tips to ones that fit more snugly in your ears will help improve the effect of noise cancelling. When changing the earbud tips, try the earbud tip sizes in order from the larger ones to the smaller ones. The size of the left and right earbud tips may be different. The “Sony | Headphones Connect” app will also help you to determine which earbud tips are most suitable for you to achieve the optimal noise cancellation effect. For more information, please check on our Help Guide link: https://helpguide.sony.net/mdr/wf1000xm4/v1/en/contents/TP1000239171.html Should you need further assistance, please contact us for help. Please email the below information to socialsupport@am.sony.com Apologies if you disclosed some of this information in your review and to customer service, we just want to ensure that we have your accurate details at the time of communication. Full Name: Best Buy Username: Telephone Number: Model Number: Issue: Regards, Carl