Active noise cancelling reduces outside noise for a more immersive sound experience Seamlessly switch between devices effortlessly switch from music on your portable device to a call from your phone, so that you never miss a call Two hours charging time get up to 24 hours of playback Leather ear pads and aluminum touches complements sleek look Detachable cable with one-button remote The JBL DUET NC headphones combine eye catching design and premium materials to deliver the world-renowned JBL Signature Sound with wireless convenience and superior active noise cancelling capabilities. With their metal touches on the angled ear-cup and perfectly sealing ear-cushions in soft protein leather they offer an immersive, more enjoyable sound experience while featuring premium design. The Active Noise-Cancelling technology allows you to indulge in your music, nothing but music, both in wired and wireless modes. They also provide 24 hours of battery life in Bluetooth mode (15 hours in Bluetooth and noise cancelling mode) and can be completely recharged in just two hours. Multi-tasking is made easy as the JBL DUETNC headphones will seamlessly switch between two devices ensuring that you never miss a call while enjoying your favorite playlist or watching a movie. In addition, you will also enjoy a detachable, tangle free fabric cord with one button remote, 3 different color options and a flat folding design for easy transportation in the premium carrying case.