These were used once in a flight overseas. The sound and comfort is phenomenal, but I’ll never travel like that again. So I’m selling these at a discount for you to take advantage of. + World’s first headphones to mimic live music and Feel like you're at the concert + Immersive natural sound field powered by 8 speakers with patented placement +Multiple frequency ranges creating an optimized soundstage, engineered for the human ear. + 50 hours of battery life playtime + Wireless (Bluetooth 5.1 )+ Wired Option + HellBlocker™ active noise cancellation + 5 Mic for calls + Transparency Mode + Super comfortable ergonomic design + Foldable, Travel Ready with BONUS: Protective Case + Prevent Listening Fatigue with a Soundstage built how we hear naturally