The Amazfit PowerBuds Pro provide active noise cancellation of up to 40dB, with hybrid digital adaptive noise-reduction and passive sound insulation technology. Simply long-press the side button and the world quietens in an instant. Hear the world around you while listening to your music by engaging the Thru Mode. Carry on conversations, hear public transport announcements and more, with a simple long-press of the button switching between your selected Active Noise Cancellation mode and the Thru Mode. Track your time, speed, distance, calories burned, heart rate and more4 while walking, running and cycling. Receive real-time voice notifications about your distance, heart rate and more every kilometer/mile while running, walking or cycling, or tap the earbud to receive them on-demand. The Amazfit PowerBuds Pro will intelligently recognize the change in movement when you start running and automatically start recording related exercise data. Activate the Motion Beat Mode in the Zepp App, and it will automatically make the bass and beats of your music stronger and clearer whenever you begin working out.