Probably not possible, as the TF is a USB slave as are most (or all) bluetooth adaptors. USB needs a master and a slave – two slaves can’t talk to each other.
Someone may have better ideas, but my guess is that you need the cable. Or buy an H9 …
hmm…i know i might be lambasted for this, but I just dont see the upside to an H9? I feel like I would need two to do what I need. I just dont have $800 to drop on two pedals. I mean someone please change my mind…?