The fake bomb also has a fake clock. Not to power anything (it couldn’t) but to make it look good. For what purpose? If sent by mail you’d need to set a timer ... To what time.
Somebody has said, these people are stupid!
It could deliver 3 VDC, anemic to run the 3.3 VDC clock.
Bingo. This is a political stunt by some dirty-tricks actor for the Dems.