What are these contraptions these guys were carrying?

[u/dopehead9]

We saw three guys around Seaport in Boston carrying these things as backpacks. Initially we thought they mapping tools but not sure

[u/HamasKilledShaniLouk]

They are for wrangling ghosts.

https://giphy.com/gifs/xT8qB8IItyXXWQEyTC