Seamlessly switch between two Bluetooth devices without missing a beat of your music'and multi-function controls on the right earcup mean you don't have to reach for your device to change volume or tracks. With a combination of TriPort technology and Active EQ, SoundLink wireless headphones deliver crisp, powerful sound at any volume. An advanced mic system with HD Voice provides clarity even when it's windy, while controls on the earcup let you take/end calls without reaching for your device. And with enhanced sidetone, you'll sound as natural as if you weren't wearing headphones. With impact-resistant materials, glass-filled nylon and corrosion-resistant stainless steel, these are engineered to survive life on the go. Their superior comfort means they're built for all-day listening, too. The continuous headband design features a micro suede Alcantara cushion that evenly distributes weight and enhances stability. The soft-cushion earcups provide a comfortable around-ear fit. These are headphones engineered to deliver a better experience'because nothing should come between you and your music.