The Bose Ultra Open Earbuds Replacement Single Right Earbud in Black is an OEM product manufactured in the 2020s. This high-quality earbud is designed for studio monitoring, DJ, and live monitoring purposes. With a driver size of 45mm and an impedance of 16 ohm, this earbud delivers excellent sound quality. The wireless Bluetooth technology allows for easy connectivity, and the built-in microphone provides convenience for hands-free calls. Additionally, the 1-year manufacturer warranty ensures peace of mind, making it a reliable choice for professionals in the audio industry.