Problem with Retro Bit SNES Wireless Controller Solo

[porterj5]

I purchased a couple of Retro Bit SNES wireless controllers and I am having problems when both are powered.  I purchased the solo versions.  I assumed the only difference between the solo and the duo versions was that one came with two controllers and the other came with one.

If I have just one controller (either) plugged in it works fine.  If I have both plugged in neither works.  Does anyone have any experience with this?

[porterj5]

Any one?

[albino_vulpix]

Perhaps they're on the same wireless channel?