The letter "m."
You let it sink in.
It Hertz.
Neither of us can last more than a minute
A decade Ba dum tish.
ME: Bodily decay over decades until inevitable mortal collapse. You HER: ... ME: ... HER: ... V-Verizon.
They only have to sleep 3 more times until Christmas
The beam replies: "Oh, just give me a moment."
The letter M