The TOZO T9 Earbuds provide an outstanding audio experience with their impressive features. Equipped with an 8.0mm diameter speaker, they deliver crystal-clear treble, while four microphones ensure up to three times clearer calls compared to other wireless earbuds. The advanced Bluetooth 5.3 technology enables a 3D immersive stereo surround sound with a high bass balance, strong signal, and smooth connections for both calls and music. Supporting HSP, HFP, A2DP, and AVRCP profiles, these earbuds offer improved transmission speed and a low-latency listening experience. The IPX7 waterproof nano coating effortlessly protects the earbuds from heavy rain or sweat during intense workouts and various weather conditions. With their mini and comfortable design, the TOZO T9 earbuds provide a secure fit for all ear shapes, ensuring stability during activities such as running, biking, training, and more. The earbuds offer a remarkable battery life, lasting up to 9 hours on a single charge (at 60% volume), and with quick charging technology, just 10 minutes of charge provides 1.5 hours of listening. Enjoy the freedom of all-day listening with the TOZO T9 earbuds, providing an excellent endurance experience.