Its hard to tell for sure, but I think I could hear outside noises *better* with ANC than with transparent (pass-through) mode. I wont risk traveling with this mouse. Hands-down, these headphones are my favorite for everyday use. - They even have a standard headphone jack if you want to talk on your phone or plug up your iPod and mow the lawn or something. I love my Chaco sandals, and I was so excited to try these. they are amazing , they are comfortable, they come in a great little case for safe keeping for your extra sets , and they fix every problem I?ve ever had with the AirPods and they do it for such an affordable price! I can confirm that these are of great quality and compare closely to the oem! In the winter or bad weather this rack works just as well indoors. It is very disappointing since I have not found a product with the sound quality of JVC for the price but I need a product that will stay on my neck when not in use. There is plenty of toe room and the heel cup holds your foot in place.