This is a kit that allows you to receive identification signals from aircraft and ships using a Raspberry Pi Zero 2W and a terrestrial digital tuner RTL2832U + R820T2. By setting up an ADS-B Feeder, you can provide surrounding traffic information to Flightradar24 and Flightaware (upgrade to contributor membership). Even when installed on the balcony of a second-floor apartment, the included antenna can constantly capture 4-6 aircraft. I believe that by installing a higher-gain antenna in a high place with a good view, you will be able to receive more signals. Please prepare a 5V3A microUSB power supply. The SD card has a pre-installed ADS-B Feeder image on a 32GB card, so please enter the location information (latitude, longitude, altitude) and the feed destination information. How about experiencing air traffic control at home, or viewing advanced flight records on Flightaware? It will be shipped via Yu-Yu Mercari delivery. Thank you for your consideration. - Model Name: DVB-T+DAB+FM - Connection Terminals: USB - Included Accessories: Antenna - Board: In a transparent case - Antenna Type: Standalone Thank you for viewing.