Bluetooth 5.3 Technology: The wireless earbuds use the Bluetooth 5.3 chipset. The signal transmission is faster and more stable, successfully achieving low latency without interruption. Even if you keep your phone in your pocket, the bluetooth headset will not disconnect, and the connection distance is up to 33 feet. Better ENC Noise Cancellation: The wireless earphones adopt dual 13.0mm low-distortion composite dynamic drivers, built-in high-resolution decoder and AAC/SBC audio encoding technology. In addition, the ENC call noise reduction technology brings clearer sound to your calls, giving you a better overall experience, and the A90 Bluetooth headset has everything you need. LED battery display: The LED display on the charging case will show the battery level of the charging case and the Bluetooth in-ear headphones, so you can precisely control the battery level of the headphones, which is convenient for you to use on the go. In addition, you can your hands to make calls, switch songs and adjust volume with the touch of Bluetooth wireless earbuds, making life easier. 36 Hours and Faster Charging: Built-in Bluetooth 5.3 chip, the range and response speed of the wireless earphones are significantly improved, up to 6 hours of use on a single charge, and the charging case can support up to 30 hours of use, a full day of use. Feel the power of fully charging your wireless sport earbuds in under an hour with a USB-C cable. Ergonomic IP7 waterproof design: By using ultra-light nano-materials, the wireless earphones achieve IP7 waterproof rating, dustproof and rainproof, extremely light, in-ear design that conforms to the shape of the human ear, and softer silicone ear covers, allowing you to Feel comfortable in any situation and only hear your own music, all from these true wireless earbuds. MORE FUN IN HEADPHONES: More fun and music from here. Get ready to listen to the sounds of the world in your Bluetooth earbuds. Discover it in your wireless bluetooth headset now!