Description Report Item Wireless Charging Capability Convenience at its best with wireless charging, allowing you to power up quickly and effortlessly without cables. Active Noise-Cancellation Feature A9PRO only Immerse yourself in your music with active noise-cancellation, blocking out unwanted sounds for a pure listening experience. Bluetooth 5.3 Technology Experience seamless connectivity with the latest Bluetooth 5.3 version, ensuring stable signal and quick pairing. Dynamic Vocalism Principle Lose yourself in rich, dynamic sound quality thanks to the dynamic vocalism principle, enhancing your audio experience. In-ear Style Design Enjoy comfortable wear with the in-ear style design, perfect for extended use during workouts or daily commutes.