2023 New Bluetooth 5.3 Headphones and Auto Pairing: Wireless earbuds is equipped with the 2023 new generation Bluetooth 5.3 chip, which provides data transfer speeds up to 2x faster than the previous generation. V90 Bluetooth earphones supports HSP HFP A2DP AVRCP, ensuring a faster and more stable connection at a range of up to 50ft. Once the bluetooth earbuds are connected for the first time, the charging case can be opened to connect to your device for added convenience.Hi-Fi Deep Bass Stereo and CVC8.0 Noise Reduction: V90 Bluetooth headphones has a built-in 13mm dynamic driver with a separate sound chamber design that delivers powerful 3D bass quality and a dynamic listening experience to power your workout. Noise cancelling earbuds has powerful built-in CVC 8.0 microphones to effectively remove ambient noise and make calls clearer. Whether you're in a crowded city street or a noisy environment, you can enjoy a high-quality calling experience.48 Hrs Battery Life and LED Digital Display: Bluetooth ear buds provides up to 8 hours continuous using time on a single charge, plus a total of 48 hours of use with the 400mAh charging case. The charging case can be fully charged in just 1.5H via USB-C charging.Ultra Lightweight Earhook Design and IP7 Waterproof Earbuds: Ear buds wireless earbuds are equipped with soft and flexible earhooks, 3 different sizes of high-quality silicone eartips for your best choice (S/M/L), ensure the sports headphones stay comfortably firm in place when doing sports, running, other outside activity etc. Wireless running earphones with IP7 nano-coating technology, it can protect your running earbuds from sweat and rain during strenuous exercise or daily use.