Vaxis ATOM500 SDI is a wireless video transmission system. It can transmit high quality H.265 video signals with 80 milliseconds and very low transmission delay. In addition to HDMI, the transmitter and receiver also comes with 3G-SDI terminals, making it a great choice for professional video creators. The transmitter can transmit signals up to 150 meters and watch videos transferring from up to 3 smartphones via Wi-Fi. It also has a mode that allows you to choose between image quality and transmission delay. It can be adjusted according to the usage environment. With the firmware updates, it is compatible with DFS specifications and can be used outdoors. Firmware updates can be downloaded from the QR listed on the main unit packaging. We also accept inquiries for specific firmware update methods. Product weight: 6.7 oz (170 g); Dimensions: W 4.4 x D 2.5 x H 0.8 inches (113 x 63.5 x 20 mm); Frequency band: 5 GHz; Signal output: 17 dbm; Supported video formats: 720P, 1080P, 1080PSF30Hz (with SDI input and output); Transfer delay: ATOM50; Battery: DC SDI Transmitter, AT. OM500 SDI receiver, USB Type-C charging cable, instruction manual (English language not guaranteed)