The Cosmolink is the device used in the Kaio system by a Spectrobe Master to control Spectrobes. In order to use the Cosmolink, the Spectrobe Master must first prove themselves, then chose a "co-master", since the power of the Cosmolink comes from the bond between the two masters. They resemble longer Prizmods, with green or pink light emanating from certain places. The Cosmolink fits on the user's arm, adapting its shape to fit on them. A weapon module is generated in combat situations, of which the appearance changes to match the color and design of the currently equipped weapon.