Voicer-kun
The  (sometimes erroneously called "Voice-kun") from Koei is an infrared transmitter/receiver for the Super Famicom that connects to the second controller port. The IR-transmitter is used for controlling Audio CD players, and is able to "learn" IR-signals from different CD Player manufacturers. Compatible games 
Below is a list of compatible games. The games' package included the Voicer-kun hardware, one or two Audio CDs, and a Super Famicom game cartridge. Angelique Voice Fantasy (1996)
 EMIT Vol. 1 - Toki no Maigo (1995)
 EMIT Vol. 2 - Inochigake no Tabi (1995)
 EMIT Vol. 3 - Watashi ni Sayonara wo (1995)
 EMIT Value Set (Vol. 1-3) (1995)

Soundware 
Koei also made a number of "Soundware" games for other consoles/computers, which did also include audio CDs or audio tapes. While using a similar concept, the Voicer-kun games were not part of the Soundware series. References

Super Nintendo Entertainment System