M10 PRO HD Sound Quality: With CVC8.0 and DSP dual noise reduction technology, binaural calls are as clear as face-to-face conversations. HiFi High Fidelity Sound Effect: Unit dynamic design, good analysis audio, no detail distortion, excellent immersive listening experience. SIRI Voice Assistant: Long press for 2 seconds to call the voice assistant, which is convenient and quick to talk with your personal assistant. Check the weather, ask for navigation, make a phone call. 3D Touch: The headset has a built-in high-sensitivity touch screen, which can intelligently recognize your intentions by lightly touching and quickly perform a variety of operations.