Upgraded Bluetooth 5.3 and One-Step Pairing: Adopting the most advanced Bluetooth 5.3 technology, it provides faster and more stable signal transmission, and successfully achieves low latency without interruption. After opening the lid of the charging box, the earbuds will automatically connect to the last paired device.Dual LED Display and 40 Hours Playtime: The wireless earphones use a unique dual LED display technology to accurately display the remaining power of the earbuds and the charging box. The Bluetooth earphones can last for more than 6-8 hours on a single charge, and up to 40 hours with the charging box. So you don't need to worry about sudden power outages when traveling or going out.High-Fidelity Stereo and ENC Noise Reduction: Our wireless earphones are equipped with a 13mm high-efficiency speaker, which makes the bass more impactful and the midrange full and textured, so the stereo sound is clear, crisp and balanced. 4 built-in ENC noise reduction microphones work together to reject surrounding noise, so that your voice sounds clear on every call.Comfortable to Wear, IP7 WaterproofErgonomic design ensures a firm fit and no ear soreness after long-term use, especially suitable for sports. Single earbud is only 3.8g, easy to pick up, and the charging box is only 29g, which can be easily stored in your pocket. Strive to bring you the best wearing experience. In addition, this sports earbud is waterproof up to IP7, making it an ideal companion for going out, gym, cycling or jogging.Smart Touch Control & Wide CompatibilityWireless earphones with capacitive touch interface and full control suite, just one simple operation to play/pause, volume control, forward/backward, call answer/end, digital assistant activation. The earbuds are widely compatible with iOS system devices, most Android system devices and most devices with Bluetooth. (Windows laptop/tablet/desktop via Bluetooth).