Volume was set to 50% and Active Noise Cancellation and Transparency were turned off. The playlist consisted of 358 unique audio tracks purchased from the iTunes Store (256-Kbps AAC encoding). Not all content available in Dolby Atmos.Ģ Testing conducted by Apple in April 2021 using preproduction Beats Studio Buds and Charging Case units and software paired with iPhone 11 Pro Max units and prerelease software. Works with compatible content in supported apps. 1 Compatible hardware and software required.