: not prepared ahead of time : made or done without preparation. 1  Two of my friends came by unexpectedly, and we had an impromptu little party in my kitchen. 2  He made an impromptu speech about honor and responsibility.
Go to the existing phone jack and unscrew the cover of the jack with the screwdriver. Locate the four wires and attach each wire to its matching color. Go to the location of the new phone jack. Attach the telephone wire to the terminals inside the phone jack. They are named red, green, yellow, and black.
The sound card below uses bright red for the microphone jack and bright green from the speaker jack. If your microphone or speakers have a USB connector, you may find USB jacks on the back panel of your computer, on the front panel, on the top or on a USB card in the card cage.