The Lot of 2 Kramer HDMI Line Receiver & Transmitter TP-580R/T is a set of high-quality audio/video transmitters that allow for seamless transmission of HDMI signals. With audio outputs connected via HDMI, these devices provide clear and reliable connectivity for TVs, videos, and home audio systems. The Kramer brand ensures a trusted and reliable product that has been tested and confirmed to be in working order, making it a great addition to any home entertainment setup.