Upgrade your audio experience with the Xiaomi Redmi Buds 4 Active Earbuds in Black. Boasting a 12mm dynamic driver, meticulously fine-tuned by the Xiaomi Acoustic Lab, these earbuds redefine your music experience by offering enriched bass and heightened acoustics. It delivers a harmonious listening journey that resonates with users worldwide. Each earbud is equipped with a high-sensitivity microphone. With an impressive battery life of up to 5 hours on a single charge and a staggering 28 hours with the portable charging case. These earbuds ensure your music accompanies you throughout your day and night. Powered by the latest Bluetooth 5.3 technology, these earbuds guarantee reduced power consumption, heightened signal stability, and fortified resistance against interference. With a sleek and professional structural design that has triumphantly passed the IPX4 water resistance test, the Xiaomi Redmi Buds 4 Active Earbuds combine exquisite craftsmanship with cutting-edge technology.