⭐️ Brand new, unused ⭐️ Free shipping ⭐️ Anonymous delivery ❤️ Bundle discounts available ❤️ Please inquire! #Chaa'sShopProductList 1. 【Industry-leading Bluetooth 5.3 technology, automatic connection when the lid is opened】 The "M52-ENC" Bluetooth earphones use a hall switch, and when connecting for the first time, open the charging case of the earphones (you can also take out the earphone unit), search for "M52-ENC" in your smartphone's Bluetooth and click to connect to your smartphone. No need to take out the Bluetooth earphones. After connecting manually for the first time, when restarting, it will automatically power on when the lid is opened, and connect automatically in just one step. We will provide a more comfortable user experience than other earphone models with the same specifications. 2. 【Up to 60 hours of playback, clear LED display】 With a 500mAh large-capacity battery and an energy-saving design, the earphones alone can play for 5-6 hours on a full charge, and up to 55 hours when combined with the charging case (usage time varies depending on volume, content being played, and usage environment). Also, a clear LED display is designed, allowing you to check the charging status of the left and right earphones, and the remaining charge of the charging case is clearly displayed in numbers from 1% to 100%. 3. 【High-quality sound equivalent to ENC noise cancellation, yet fits comfortably in the ear】 These wireless earphones maintain the same compact size as before while achieving significant functional additions and improved sound quality. You can hear the details of musical instruments, so you can enjoy the mid and high frequencies dynamically along with the bass. Especially at 50% volume, you can feel the depth and impact of the bass. This provides a high-quality call experience. Perfect for online courses and meetings! Enjoy a clear call experience you've never had before. 4. 【With touch sensor, easy operation, excellent wearing comfort】 With one touch, you can easily operate the earphones to play/pause music, skip forward/backward tracks, answer/reject calls, and use SIRI (voice guidance), etc. You don't need to take out your smartphone even when you're busy with online meetings, driving, housework, or package delivery, everything can be done with a single touch. 5. 【Fast charging type-c, worry-free waterproof】 Equipped with IPX7 waterproof performance, it is splash-proof, resistant to sweat and water splashes, so you can use it with peace of mind even if it gets wet from sudden rain or sweat from intense exercise. Applicable to all weather conditions.