Stay Aware, Stay Comfortable: AeroFit 2 open-ear earbuds offer all-day comfort with soft materials and a non-invasive, double-curved design. Stay attuned to your surroundings while you\'re running along scenic trails, cycling through the city, or walking your dog-without missing a beat. Four Adjustable Positions for a Secure, Comfy Fit: soundcore\'s innovative 4-level adjustable ear hooks ensure a comfortable fit tailored to over 99% of ear shapes and sizes, boosting stability and comfort during exercise or fitness routines. Close to the Ear Canal for Deeper Bass: The adjustable ear hooks make sound clearer to deliver the bass you crave. With a maximum boost of 7.5 dB compared with non-adjustable hooks, enjoy richer, more powerful bass. Rich Sound: Deep bass, clear mids, and vivid treble, fueled by 20 x 11.5 mm racetrack drivers and BassTurbo acoustics. Indulge in full-bodied wireless Hi-Res audio with LDAC. Al-Boosted Clear Calls: With 4 beamforming mics, environmental noise cancellation, wind-blocking meshes, and advanced Al, experience clear calls during online meetings or casual conversations even in the busiest streets. Free Al Translation: Supports translation in over 100 languages with real-time responses and high accuracy-perfect for travel, work, or learning. From tropical vacations to global conferences, stay in the loop wherever life takes you. Please note that this feature is avallable with version 3.8.7 or later of the soundcore app, and when the earbud firmware is updated to the latest version. Wireless Recharge, Long Playtime: Place the case on a wireless charger for tangle-free recharging. Get up to 10 hours of music on a single charge, extendable to 42 hours with the case.