The patent holder on the karaoke machine is Roberto del Rosario, who is with the Philippines. He made the karaoke's sing-together system in 1975 which is regarded as the only holder of a patent to get a karaoke system on the earth.[20] Later on developments[edit] 5x digital zoom directional seem https://xn--939au0g6rj1ue34n9rrf5c.online/