It’s launching the Sennheiser HD 500 BAM Microphone, which is a boom mic for audiophile headphones. With the Sennheiser HD 500 Bam mic, you can plug the mic right into the headset and have everything in one contained unit. Specifically, those in the HD 500 series, and then the HD 620S as well. The full list of compatible headphones includes the HD 505 Copper, HD 505 Gold, HD 550, HD 559, HD 560S, HD 569, HD 579, HD 599, HD 599 SE, and the HD 620S. The HD 500 Bam microphone is on sale from September 23 and is available directly from Sennheiser and authorized retailers.