For most people, truly wireless earphones (or TWS, or 'AirPods', as everyone calls them) are more about convenience than about audio quality. By and large, having a TWS is more about the convenience of hands free phone usage, with features like ANC and transparency mode being more important than audio quality. Anyone who wants good audio quality inevitably switches to more conventional earphones, often wired ones. Some TWS, however, are an exception to this rule - and Sennheiser's Momentum Free series has been one of them. They are TWS, they are convenient, but they sound pretty good as well! The latest in the series - the Sennheiser Momentum True Wireless 4 follow this tradition!