"External noise" refers to any unwanted or distracting sounds or disturbances coming from the surrounding environment that can disrupt our concentration or communication. Full definition
Good sound insulation also protects the interior from external noise as well as the lack of engine noise. (edmunds.com)
We did, however, find that the snug design eliminated a lot of external noise and made for a comfortable audio experience through the day and into the small hours. (pocket-lint.com)
They reduce external noise and provide great sound that emphasizes bass. (theblockishaute.com)