Designed for use with the C5, this very simple mat is simply an assembly of four of the 2x2 coil arrays, taped together with a good quality cloth tape.  Anyone could build one, but we assemble ours for your convenience.  It allows you to employ synchronizes fields over a larger area than a single 2x2 coil array.  You can lay on the mat, or lay it over or around wherever you need to apply ICES-PEMF.  We think it is especially helpful for large-area surface or near-surface injuries.

It requires four synchronized outputs to work properly, so it would not work well with the Model M1 or A9.