Advanced Noise Cancellation: The R50i NC uses adaptive noise cancellation technology to intelligently detect and reduce ambient noise, providing a quiet and enjoyable listening experience. High-Resolution Sound: Equipped with a 10mm dynamic driver and BassUp technology, the earphones deliver powerful bass and clear highs, ensuring rich, clear sound. Long Battery Life: With up to 10 hours of playback time on a single charge and an additional 35 hours from the charging case, you can enjoy extended listening sessions without worrying about running out of battery. IPX5 Water Resistance: These earphones are IPX5 water resistant, making them ideal for use during exercise and outdoor activities. Comfortable Wearing: The ergonomic design and multiple ear tip sizes ensure a comfortable and stable fit for all-day wear. Bluetooth 5.2: The latest Bluetooth technology provides a stable and efficient connection. Voice Assistant Support: Access your voice assistant with a simple voice command.