The Plantronics Poly Blackwire 5200 Series C5210 USB Monaural Headset in black is a high-quality headset designed for single earpiece use. With Bluetooth wireless technology, it offers convenient connectivity for your laptop or desktop. It features a built-in microphone for easy call functions and a sleek headband form factor. This headset is manufactured in China and has a 6ft cable length for flexibility in use. Perfect for those looking for a reliable and user-friendly headset for their computer and networking needs. open box but unused.