⭐️ Brand New, Unused ⭐️ Free Shipping ⭐️ Anonymous Delivery ❤️ Bundle Discount Available ❤️ Please inquire! 1. 【Industry-Leading Bluetooth 5.3 Technology & Automatic Connection Upon Opening】 The "M52-ENC" Bluetooth earphones utilize a hall switch. When connecting for the first time, open the charging case (or take out the earbuds), search for "M52-ENC" in your smartphone's Bluetooth settings, and click to connect. No need to take the earphones out. After the initial manual connection, the next time you open the lid, they will automatically power on and connect in just one step. This provides a more comfortable user experience than other earphones with the same specifications. 2. 【Up to 60 Hours of Playback & Clear LED Display】 Equipped with a 500mAh large-capacity battery and an energy-saving design, the earbuds alone can play for 5-6 hours on a full charge, and up to 55 hours with the charging case (playback time varies depending on volume, content, and usage environment). The design also includes an easy-to-read LED display, allowing you to check the charging status of both left and right earbuds, as well as the remaining charge of the charging case, clearly displayed from 1% to 100%. 3. 【ENC Noise Cancellation Equivalent & Comfortable Fit】 While maintaining the same compact size as before, these wireless earphones have significantly improved functionality and sound quality. You can hear the details of musical instruments, allowing you to enjoy the mid-high and low frequencies dynamically. Especially at 50% volume, you can feel the depth and impact of the bass. This provides a high-quality calling experience. Perfect for online courses and meetings! Enjoy a clear call experience like never before. 4. 【Touch Sensor, Easy Operation, and Excellent Fit】 With a single touch, you can easily control music playback/pause/skip forward/skip backward/answer/reject calls/SIRI (voice guidance), etc., on the earphones. You can do everything with a single touch without taking out your smartphone, even when you're busy with online meetings, driving, housework, or package deliveries. 5. 【Fast Type-C Charging & Waterproof for Peace of Mind】 Featuring IPX7 waterproof performance, these earphones are splash-proof and sweat-resistant, so you can use them with confidence even in sudden rain or sweat from intense exercise. Suitable for all weather conditions.