The Plantronics DA40 Headset to USB Adapter allows users to easily convert their DA40 headset into a USB headset for added convenience. The adapter features a sleek black design and a comfortable headband form factor for double ear-pad use. With a boom microphone type and USB connectivity, this custom bundle includes the DA40 USB DSP audio interface for seamless integration. Perfect for those looking to quickly and efficiently set up their headset for use with a computer or other digital device.