**40-Hour Extra-Long Battery Life Wireless Earbuds: Run a Marathon with Your Favorite Music!**： Enjoy 8 hours of music playback on a single charge, with the 500mAh charging case extending total usage time to an impressive 40 hours. A quick 15-minute charge provides 90 minutes of uninterrupted playback. Whether you're on the go, working, or relaxing, the T12 earbuds deliver exceptional audio quality without the hassle of frequent charging. True wireless freedom starts with battery freedom! **Latest Bluetooth 5.3 Technology: Instant Pairing, Ultra-Low Latency**： Equipped with the latest Bluetooth 5.3 chip and flash-pairing technology, the T12 doubles signal transmission speed, improves sound fidelity by 50%, and virtually eliminates audio-video latency. Enjoy a stable connection within a 15-meter range, even in crowded environments. With the T12, you're always one step ahead! **Powerful Deep Bass: Immersive Sound, Heart-Pounding Beats**： Featuring a 13.2mm quad-magnet dynamic driver and professional acoustic tuning, the T12 delivers 30% more driving power and a low-frequency range down to 14Hz. Experience richer, purer, and more detailed audio that brings every note to life, immersing you in the music like never before.