Funny enough that you say that! The company that I really like for these types of products, Therasage, has done that exact thing except for ultrasound.

https://therasage.com/collections/therapro-pemf-infrared-red-light-pad

That's the one we bought for the PEMF mat. It's got infrared sauna, red light and PEMF all in one, plus a Tens attachment so you can do the whole kitchen sink at once hahaha. We haven't tried ALL of them at once, but it's going to be something that we will eventually do.