※ This is an add-on song chip that can be used with the initial model karaoke on stage microphones such as "SLE-PK500", "SLE-PK 1", "Z-PK 2", "Z-PK3", "Z-PK700", "Z-PK30", and "Z-PK7000", and includes 30 nostalgic "kayokyoku" (popular songs). ※ This chip can be used with other On Stage karaoke microphones with numbers "Z-PK10GT" and later. It should also work with "PK- (number)" models, "PK-X", and "PK-F" models. (Not all models have been confirmed.) ※ This is a "Famous Songs of the Showa Era" collection, and due to copyright reasons, it seems to be sold as a "separate song" series in "30-song units". (Except for some songs, these songs cannot be sold as "built-in songs" in the microphone itself.) ※ It is not compatible with other types of karaoke microphones ("PK-N..." or "PK-W..."), so please check your model before purchasing. ※ Operation has been confirmed, but it is being sold as a "bargain item" because it is "without packaging". ※ Two "A4-size song list" photos will be enclosed. Note: Sometimes, the "add-on song chip" may not be recognized when set in the "Karaoke On Stage" series microphone. ◎ In that case, it is thought that the "chip mounting connector" on the microphone side or the "connection terminals" on the chip side have "oxidized" due to aging, causing "poor conductivity". ◎ Be sure to "turn off the power" and insert and remove the chip 2-3 times. (Of course, please check the ⇧ direction.) ※ It will be shipped via "Nekopos".