One of my favorite Kagamine Rin / Len song! REMOTE CONTROL (or Controller) is a song about a remote control which they can control each other using that. To be exact, Rin has a control for a console that she can use to control Len whatever/whenever she likes. On the other hand, Len has a remote control for a TV, which he can use at Rin.
This song was pretty kawaii and catchy. Particularly the: L, R, L, R, STOP, DASH & TALK B B A A S part. (Above is the Len and Rin's Remote Control's modules. Sorrry for the low definition of the photos!)