Freedom perfected in a truly wireless design, with industry leading noise canceling powered by Sony s proprietary HD Noise Canceling Processor QN1e. Form meets function with up to 24 total hours of battery life with quick charging, touchpad controls, premium sound quality, and smart features like Wearing Detection and Quick Attention Mode. Its adaptive sound control automatically detects what you're doing, such as walking, traveling, or waiting, and auto-adjusts your ambient sound settings to suit the situation. The app also lets you customize these settings to your liking. In addition, does an ambient sound control adjust the volume of background sound or only allow voices to be heard. Customize your controls with the app that allows you to customize the default touch controls and assign alternative functions, like activating Google Assistant.