Experience wireless luxury and versatility redefined with award-winning SXFI technology and next-generation xMEMS drivers. Unparalleled Audio Crafted for audiophiles, perfected for everyday use. Two separate drivers power the Aurvana Ace SXFI to deliver unmatched precision, clarity, and power for the most immersive experience. Immersive Surround Sound SXFI technology recreates the same expansive depth, details, and soundstage of an immersive multi-speaker system on headphones. Utilizing advanced computational audio, it personalizes audio according to your head and ear anthropometry, optimizing the audio just for you. Hear every nuance and subtlety like how they are meant to be heard. The latest Gen 4 further enhances the playback experience with unparalleled immersion and realism, driven by SXFI Technology seamlessly embedded at the core of the Aurvana Ace SXFI. Tune Out The Noise Hybrid ANC eliminates up to 98% of ambient noise, letting you immerse yourself in your music without any distractions. Ultra-Clear Call Experience The six built-in microphones—three on each side—capture your voice with precision, ensuring crystal-clear calls and superior call quality. UP TO 8 Hours of battery life on a single charge (with ANC Off)1 UP TO 28 Hours Of total playtime with the case (with ANC Off)1 1Based on moderate volume level. Actual battery life will vary with use, settings, songs and environmental conditions.