Adaptive ANC & Audio CompensationThe up-to-date Bimodal Ear Canal Adaptive Technology allows H3 wireless headphones to detect ear-canal structure and the way people wear it and create exclusive noise canceling parameters to revise audio curve that the headset can deliver same yet premium listening to different people. 43dB Active Noise CancellingThe feedforward and feedback mics can identify noises and generate anti-noise waves to offset them so you can truly shut out the world around you and enjoy your own music for company. You can choose one among lndoor, Commuting, Boosted and Anti-wind-noise modes via QCY APP when you are in different place. Besides, the headset allows you to adjust noise canceling level to strike a balance between noise isolation. 60-Hour PlaytimeQCY H3 wireless headphones provide over 60 hours of playtime in ANC OFF mode. The standby time is over 350 hours at full charge, and it comes with a 3.5mm audio cable for switching to wired mode anytime,