To enable Karaoke users to effectively use Karaoke playing, food and drink, and viewing of advertisement video in parallel.

In the Karaoke utilization system including a Karaoke device accessible to a video database and a tablet computer communicable with a POS system, the Karaoke device displays a question message whether advertisement is possible or not, when playing a song, and displays an advertisement video extracted from the video database, when advertisement acceptance electric word is received from the tablet computer, and transmits the electric word with a point attached to the tablet computer when playing of the song is finished. The tablet computer transmits the advertisement acceptance electric word to the Karaoke device if there is a predetermined user input, and stores a point value included in the electric word with the point attached, from the Karaoke device, and makes operations possible for transmitting a play reservation electric word to the Karaoke device, and for transmitting an order electric word including the point value stored in a memory, if there is user input for ordering an item.

COPYRIGHT: (C)2008,JPO&INPIT