90H Battery Life and Fast USB-C Charging: The ear buds wireless earbuds provides up to 15H continuous using time on a single charge, plus a total of 90H of use with the 650mAh charging case. The charging case can be fully charged in just 1.5H via USB-C charging. Whether you're running, gaming or working, you don't have to worry about powering up your bluetooth earbuds - go up to a week without recharging with the BX29 wireless earbuds bluetooth. Punchy 3D Deep Bass and 4 ENC HD Mics: The headphones wireless bluetooth has a built-in 14.2mm dynamic driver with a separate sound chamber design that delivers powerful 3D bass quality and a dynamic listening experience to power your workout. It is also paired with 4 CVC8.0 HD micrs with ENC reverse wave speed shaping technology to effectively reduce noise interference during calls. Ergonomic Sports Design: The sports headphones features ear hooks made of an innovative TPE (elastic) material that not only solves the problem of wireless earphones falling off when running, but is also comfortable to wear and anti-allergic. The earphones wireless bluetooth is available with three sizes of high-quality silicone eartips (S/M/L), offering a breathable and lightweight fit for you to choose from. Bluetooth 5.3 and Easy Pairing: The wireless running earphones is equipped with the 2023 new generation Bluetooth 5.3 chip, which provides data transfer speeds up to 2x faster than the previous generation. The Ltinist earbuds over ear supports HSP HFP A2DP AVRCP, ensuring a faster and more stable connection at a range of up to 15M. The wireless headphones in ear can be easily paired with iOS, Android, TV, smart watch, laptop, tablet and other devices with Bluetooth. Button Control and IP7 Waterproof: The wireless earphones in ear running includes three clickable buttons for playing or pausing music, controlling volume, activating Siri and accepting or rejecting calls. In addition, designed with IP7 technology, making the BX29 black sports headset waterproof and sweatproof. Enjoy great performance in a variety of environments, from the daily training to outside sporting.