Up to 40dB active noise cancellation 3+1 modes for everyday scenarios . Ergonomic design Close-fitting, lightweight and comfortable.The streamlined body is inspired by a Möbius loop design, with refined and elegant styling.The all-new adaptive noise cancellation technology monitors the level and type of ambient noise in real time and automatically selects the appropriate noise cancellation mode. It understands sound and understands you even better.Deep noise cancellation in very noisy environments allows you to enjoy passing scenery in peace.