The new HD 350BT is the ideal choice for people that love great audio. Enjoy an engaging sound experience with deep dynamic bass. Quality is by the latest wireless technology including Bluetooth 5.0 and AAC, AptX codec support, with AptX Low Latency for perfect audio synchronization with videos. The Sennheiser Smart Control App makes it easy to customize the sound via the equalizer or engage podcast mode for improved intelligibility of speech content.