The overall noise reduction experience of Sennheiser blue wooden steamed bread 3 for Apple mobile phone is good. The Sennheiser Blue Wood Steamed Bread 3 used for Apple mobile phones belongs to the upper-middle level, and the overall noise reduction experience combined with passive noise reduction at the physical level is still very good. Through the dial on the right side of the headset, you can switch back and forth between noise reduction mode and transparent mode. Simply put, transparent mode can amplify the sound of the surrounding environment.