Open air design: open design, comfortable to wear without pressure. No feeling, no tension, free the ear canal, natural and breathable, no room for bacteria to grow. Even with prolonged use, there is no feeling of clogging. Airy comfort, secure fit: the lightweight 8g housing with ear hooks matches ergonomics, fits the contour of the ear, embedded with memory metal wire for extra stability over time. No connection cable design, suitable for single and double ear use. Spacious and immersive sound: The bass enhancement algorithm optimizes bass performance, while the special dynamic speaker unit reproduces more audio details. The combination of soft and hard elements, a powerful collaboration, delivers a breathtaking three-dimensional listening experience, similar to a live concert. LONG BATTERY LIFE - The earplugs last up to 5 hours on a single charge, along with the charging case even up to 18 hours, which allows for easy use all day and says goodbye to any battery need. With a charging time of 75minutes, you get a 6-hour music listening experience that gives you a carefree day. AI Call Noise Cancellation: Experience crystal clear hands-free calls from anywhere. Two microphones in each earbud with AI algorithm to easily remove ambient noise while maintaining voice intelligibility during calls.