BLUETOOTH 5.1 CONNECTIVITY: Features the latest Bluetooth 5.1 technology for a stable, low-latency wireless connection with all compatible devices. 9D HIFI SOUND WITH NOISE REDUCTION: Delivers immersive 9D HiFi audio quality with intelligent noise reduction, ensuring crystal-clear sound for music and calls. IPX7 WATERPROOF RATING: Built to withstand sweat and splashes with an IPX7 waterproof rating, making these earbuds ideal for workouts and outdoor use. LED POWER DISPLAY & WIRELESS CHARGING CASE: The charging case features an LED digital display showing individual battery levels for both left and right earbuds, and supports wireless charging for added convenience. TOUCH CONTROL: Intuitive touch controls on each earbud allow you to easily manage music playback, adjust volume, and handle calls without reaching for your device.