Soundcore AeroFit 2 by Anker, Open-Ear Headphones, Wireless Earbuds، Adjustable Ear Hooks, Snug Fit, Rich Bass, Hi-Res Wireless Audio, 42H Play, Bluetooth 5.4, Wireless Charging, IP55, AI Clear Calls, Open-Ear Earbuds All-Day Comfort: Experience unrivaled breathability and comfort with our open-ear headphones. Boast a non-intrusive design with air conduction technology, a double-curved surface, and soft, adjustable ear hooks for you to wear all day pressure-free. Stay Connected: From chats to traffic, stay attuned to your environment with AeroFit 2 open-ear headphones. Enjoy your favorite soundtracks while keeping tabs on everything happening around you. Rich Sound: Deep bass, clear mids, and vivid treble, fueled by our open-ear earbuds' 20mm × 11.5mm racetrack drivers and soundcore-engineered BassTurbo technology. Indulge in full-bodied Hi-Res wireless audio, refined by LDAC. Hassle-Free Recharge for Extended Play: Place the case on a wireless charger for tangle-free, neat charging. Worry no more with 10 hours of uninterrupted music on a single charge, extendable to 42 hours with the charging case. Crystal-Clear Calls: 4 beam-forming microphones and a cutting-edge AI algorithm pick up your voice while filtering out the noise. Even in bustling streets, you're heard effortlessly in crucial calls.