You can switch between ANC low, ANC high and ANC Auto where it detects the environmental noises around you and adjusts the ANC accordingly. The rest of the toys are amazing. It doesnt appeal to my husband. So I did what any logical person would do -- I contacted the Steelseris customer service on 30 September 2018. Refer to size chart. Thats an exaggeration, but the re-ordered 10. Ripped out of the wall immediately upon hanging my KIDS’ BIKES (maybe 70 pounds for all three????)! Quick and easy to slip on, theyre great for popping out for those quick jobs. Connectivity: 5/5I have had minimal issues with connectivity. Most other headphones I tried and returned had terrible microphones.