1. Your headphones have Hybrid Active Noise Canceling (ANC) Technology for more effective noise cancellation. You can control the amount of environmental noise you want to let in or block out with ANC Toggle to choose between ANC ON /OFF Modes and Transparency Mode.
2. Further levels of Active Noise Cancelling (ANC) can be set in PLAYGO App. There are 2 ANC levels (Bus/Train and Normal), for personalization.