The product is a lot of 5 Plantronics Blackwire C3220 USB headsets in black. These on-ear headsets come with a built-in microphone and are designed for use with computers and desktops. They are ideal for those looking for a high-quality, reliable headset for communication and listening purposes. The product also comes with a California Prop 65 Warning, indicating that it contains a chemical known to the state to cause cancer.