I gave my kid a bolus (Omnipod) from downstairs while she was upstairs.

I didn't think it would work but the PDM was by me and she was asleep in her room. So I held the PDM up to the ceiling roughly in line with where she'd be. Shockingly it connected. That thing fails to connect from a couple feet away sometimes, never thought it would get through the ceiling and a bed at a few feet away.