A "mouse" controller made for use with CD-i systems.Most commonly these were used for "professional" software (business or education uses) but could also be used to play CD-i games software.
<a href="//commons.wikimedia.org/wiki/User:Matthew_Paul_Argall" title="User:Matthew Paul Argall">Matthew Paul Argall</a>
<span class="int-own-work" lang="en">Own work</span>