Hybrid ANC Technology composed of Feedforward and Feedback Noise Cancellation, reducing both the noise from outside and inside the headphones. You should never have to worry about battery life. The Air 1 ANC provides 5.5 hours (7h without ANC) of battery in a single charge and a total 30 hours (38 hours without ANC) with the charging case. Transparency mode - Amplify the sounds of your ambient environment and enables you to hear what is going on around. Have the choice between fast charging USB-C or wireless charging for even more wireless freedom. Just place the charging case on the charger. No wires, no worries.