"SIGNALOID BOX" is Signal-P's third album; the previous being SIGNALOID SOUNDS. It consist of 14 tracks; it is said that the album SIGNALOID BOX is the combination of Signal-P's second album "SIGNALOID SOUNDS" and his first album "SIGNALOID ALBUM". It's also his first song to be labeled by Karen-T.
Several notable tracks of the album include "Rin Rin Signal", by Len and Rin "Transmit", by Rin, "CHU! Shite" by Rin and more. As it was a labeled album it was not distributed in any events.