The 19 Plantronics Poly C5210 USB-A Mono One-Ear Headset is a sleek and modern headset designed for single earpiece use. Featuring a black color and a comfortable headband form factor, this headset offers Bluetooth wireless technology for added convenience. With a boom microphone type and a 7ft cable length, this Plantronics C5210 model is perfect for those looking for a high-quality headset for their computer or desktop setup. Made in China in the 2020s, this preowned headset is a great choice for those seeking a reliable and efficient communication solution.