About this item 40Hrs Extra-Long Battery Life Wireless Earbuds - Enough time to listen to 500+ songs: These wireless earbuds can provide up to 8 hours of music on a single charge, with a total usage time extending to 40 hours through the LED display charging case (at 50%-60% volume). With a 15-minute fast charge, these earbuds can deliver up to 90 minutes of uninterrupted music playback. Say goodbye to low-power anxiety and enjoy nonstop music any time! New Generation of U-shaped Earbuds - Non-pressure wearing experience: Each earbud weighs just 3.9g. The innovative U-shaped arc semi-in-ear structure and smooth curve design ensure a nearly perfect fit and stability. Unlike full-in-ear buds, the TPU material reduces the stuffy feeling for increased comfort. 0.05S Ultra-Low Latency Bluetooth 5.3 Earbuds - Lossless transmission of audio data: These headphones utilize Bluetooth flash pairing technology based on the latest Bluetooth 5.3 version for quick pairing in just a few seconds. Compa