The flagship model features dual proprietary technology to suppress sound leakage ("PSZ") and clear delivery of just your voice without the undesirable background noises through the microphone function ("MFV"). Extremely lightweight for headphones at 6.5oz (185g) with a distinctive futuristic design is certain to make a statement. Approx. 20hrs of playback time on a full recharge makes the nwm ONE ideal for a seamless all day use. Despite its open back design, the nwm ONE features a 12mm driver for mid and high frequencies and a 35mm driver for low frequencies for a natural background-like audio experience. As opposed to cancelling ambient sounds, allowing your surrounding sounds to coexist with your choice of audio allows for the user to be aware and communicate seamlessly without disruption. nwm Connect App available for customizing equalizer.