The AIRTAME AT-DG2 Wireless HDMI Screen Sharing Device is a black extender that allows for wireless connectivity with features such as multi-screen streaming and 4K resolution. With a sleek design and dimensions of 1.3 cm in height, 7.8 cm in length, and 7.8 cm in width, this device is conveniently compact for easy setup. It also includes a USB port for additional connectivity and POE power supply for convenience. Perfect for enhancing home networking and connectivity, the AIRTAME AT-DG2 is a versatile and efficient solution for sharing content wirelessly.