Latest Bluetooth 5.4 technology You'll experience lightning-fast connections and seamless streaming of your favorite music. Bluetooth 5.4 technology features stable connection and high-speed transmission of Bluetooth 5.4. You can enjoy a low-latency listening experience, stereo sound, and crystal-clear calls. IPX6 waterproof The nano-coating applied to the surface of the earplugs effectively repels both rain and sweat, ensuring a waterproof rating of IPX6. This robust protection allows for uninterrupted use during high-intensity runs and inclement weather, making them an ideal companion for your active lifestyle. Give you the ultimate comfortable experience Whether you are working out, working, traveling, having meetings or watching dramas at home, Oraolo headphones can provide you with a stable wearing experience. No matter what happens in the day, it will not become a burden on you. Call sound quality is extremely clear Whether you are working or studying, you can make calls. This headset can ensure that you can hear the other party's voice clearly, making your communication smooth. Widely compatible Bluetooth Enchanced devices on iOS/Android/Windows System Type-C fast charging The 400mAh large-capacity charging box takes only 1.5 hours to fully charge the charging box and 1 hour to fully charge the earphones. Each earbud supports up to 6 hours of playback on a single charge, for a total of 32 hours of playback when used in rotation with the charging case.