- Advanced Bluetooth 5.3 Technology: Experience seamless connectivity with upgraded Bluetooth 5.3 EDR. Enjoy faster pairing and universal compatibility, ensuring your headphones automatically connect to each other and the last paired device as soon as you open the charging case. - Exceptional Audio Quality: The J52 in-ear Bluetooth headphones feature a 13 mm graphene audio driver and AAC audio codec for crisp highs and powerful bass. With a built-in high-quality microphone and lossless HD rendering technology, indulge in an immersive music experience. Advanced CVC 8.0 noise cancellation effectively reduces ambient noise for clearer calls. - Intelligent LED Display & Long Battery Life: Stay informed about your battery status with the unique digital LED display showing remaining power. Enjoy up to 7 hours of high-quality sound on a single charge, plus an additional 35 hours with the charging case, totaling 42 hours of playtime. A quick one-hour charge via the Type-C port ensures you're always ready to go. - Comfortable & Secure Fit: Designed for comfort, the refined in-ear shape ensures a snug fit, weighing only 3 g to eliminate ear fatigue. The IP7 waterproof rating protects against sweat and rain, making these headphones ideal for workouts, commutes, or daily use. - Versatile Use Cases: Perfect for gym sessions, outdoor activities, or working from home, these headphones deliver reliable performance and comfort in any situation. Whether you’re enjoying music, taking calls, or attending virtual meetings, the J52 headphones meet your needs with style and efficiency.