About this item 2024 Bluetooth 5.3 Technology: Adopting the advanced Bluetooth 5.3 and dual-channel transmission, wireless earbuds support HSP HFP A2DP AVRCP, which provides stable transmission speed and instant pairing without interruptions. Even if you put the mobile phone in your pocket, the Bluetooth earbuds will not be disconnected, the connection distance is up to 15m. High-fidelity Audio and Crystal Clear Call: Our wireless headphones with 14.2mm dynamic driver and AAC/SBC audio coding technology, resulting in sufficiently strong bass and naturally connects to the mid and high frequencies. The built-in HD Mic in each Bluetooth headphones reduce background noise to ensure stable signal and clear and realistic call. 40 Hrs Playtime and LED Displays: The wireless earphones can last for over 6-8 hours playtime from a single charge and provides extra 32 hours playtime with charging case. Fully charge the rechargeable case in only 1.5 hours via a fast-charge USB-C cable. The LED display on Bluetooth earphones accurately display the remaining power of charging case and the charging progress of Bluetooth wireless earbuds to let you know the current power status of your headphones and charging case anytime. Mini Ultra Lightweight and Ergonomic Design: A single earbud is only 3g, light in weight, you can't feel its existence after wearing it, and it won't make you feel uncomfortable. The compact and sleek charging case fits easily in pocket, thus you can take them with you anytime & anywhere. The ergonomic design provides a comfortable and secure fit that doesn’t protrude from your ears, especially for sports, workouts, gym. IP7 Waterproof and Wide Compatibility: Wireless sports earbuds use IP7 nano-coating technology to seal the surface of both earphones and prevent sweat or rain from entering. Internal nano-coating protects against airborne moisture that could damage the components. Also, wireless ear buds pair with smart devices via Bluetooth, which works with Android 4.4 or iOS 8.0 and above, Bluetooth 4.0 and above.