The other thing inside your circle is the DEQ remotes. The small one came with a DEQ and the large one on the left unfortunately never worked due to an issue with the chipsets.
M25 x 2, M50, M44, M100, Original MS 275, MS2125 & MS2250 (with shroud), XMax 15, White EQ215X, EQ232, PLD1,BLT, MX3, AX-406A, Basscubes, + Soundstream, Earthquake, RF, Boston, OZ Audio & KEF