The Ping-O-Tronic was a dedicated home video game console manufactured by Zanussi and marketed under the Sèleco brand in Italy in late 1974. Regarded as the first video game console industrially produced in Italy, it belonged to the first generation and used no microprocessor, stored software or cartridges: its games were generated by dedicated electronic circuitry, consisting mainly of discrete components and three TTL integrated circuits. The earliest versions offered two-player tennis modes, a single-player squash-style game and an automatic demonstration mode. Numerous revisions existed, identified from PP-1 through PP-10; from PP-5 onward, some incorporated a connection for the Gun-O-Tronic light gun. In April 1975, Zanussi obtained a licence from Magnavox and Sanders Associates relating to the gaming technology that lay behind these early home systems.