2026 Newest Bluetooth 5.4 Technology and One-Step Pairing: B02 wireless headphones use the newest Bluetooth 5.4 chipset which fully optimizes Bluetooth transmission and connection defects, and successfully achieved non-disruptive latency! At the same time, it can automatically connect to the last paired device when taking the wireless earbud out of the charging case. Wonderful Sound Quality and Powerful Bass: Bluetooth earbud adopts dual 13mm low-distortion composite dynamic drivers with high resolution decoder built-in and AAC/SBC audio coding technology that produce rich immersive sound, so no matter what environment you’re in, you can enjoy the dynamic & immersive music and focus on your workout. What's more, our in ear headphones adopts unique stereo design and 13mm big composite diaphragms to produce powerful sound with 43% more bass. 50 Hours Playing Time and USB-C Fasting Charging: Bluetooth earphones provide up to 10 hours of high-quality sound output on a single charge, and the included charging case provides an additional 4 charges, giving 50 hours of total playtime. And with USB-C tech, it only takes 1.5hr every full charge for the case. Smart Touch Control and Ergonomic Design: By touching the true wireless earbud to answer the phone and hang up the phone, music play/pause, music up and down , volume up/down, or access to other functions, the operation is very simple and convenient. Besides, our running headphones endowed with ergonomic design hence attach into your ears seamlessly after many tests and improvements and brings extraordinary comfort and secure fit that apart from others. Dual LED Ditgtal Display: Bluetooth headphones with dual LED display clearly shows both the battery level of the case and earbuds. Dual LED Ditgtal Display: Bluetooth headphones with dual LED display clearly shows both the battery level of the case and earbuds. The charging case presents its battery from 1%-100%: the LED light bar will flash when the earphones are charging while numbers flashing when the charging case is charging.The charging case presents its battery from 1%-100%: the LED light bar will flash when the earphones are charging while numbers flashing when the charging case is charging. Ear-Hook Design and True IP7 Waterproof: The customized comfortable wireless earphones will not cause any discomfort or pain or fall out while working or exercising because of the silicone earhook with soft and durable flexible material. What’s more, the B02 sports headphones are made of high quality waterproof materials and pass high specification waterproof test, which can effectively protect the internal components from water, rain and sweat.