Bluetooth 5.4 & Fast Pairing: The wireless running earphones are equipped with a new generation of Bluetooth 5.4 chips, which can provide data transmission speeds 2 times faster than the previous generation. The earbuds wireless Bluetooth ensures a faster and more stable connection within a range of up to 15M. The running earphones can be easily paired with iOS, Android, smart watches, laptops, tablets, etc. (excluding gaming devices).Button Control & IP7 Waterproof: The in-ear sports wireless earphones include three clickable buttons for playing or pausing music, controlling volume, activating Siri, and answering or rejecting calls. In addition, the design with IP7 technology makes the Bluetooth running earphones waterproof and sweatproof. From daily training to outdoor sports, enjoy excellent performance in various environments.Ultra-Light Ear Hook & IP7 Waterproof: The wireless noise-canceling earbuds are equipped with TPE flexible ear hooks, 3 different sizes of high-quality silicone earplugs for your best choice (S/M/L), ensuring that the sports earbuds stay comfortably in place during exercise, running, etc. The wireless ear hook earphones adopt IP7 waterproof technology, which can protect your earbuds from sweat and rain during intense exercise or daily use.3D Stereo Sound and CVC8.0 Clearer Calls: Our wireless Bluetooth earphones are equipped with 14.2mm high-efficiency speakers, which make the bass more impactful and the mid-range full and textured, so the stereo sound is crisp, clear and balanced. CVC8.0 full-duplex microphone noise reduction software provides echo and ambient noise cancellation for calls, which is the most advanced noise reduction technology in Bluetooth earbuds at present.Dual LED Digital Display and 75 Hours Playtime: The Bluetooth earbuds charging box with LED power display displays the remaining power in percentage. The charging box displays the battery power from 1% to 100%, allowing you to know the current power status of the earbuds wireless earbuds and the charging box anytime, anywhere. A single charge can be used normally for up to 15 hours, and the playtime can be extended to 75 hours with the USB-C compact charging box.