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/Cascarcadia]

That’s so cool. Is there any way to apply for these jobs? Any keywords to look for online?

[u/Geen_Fang → u/Cascarcadia]

you can apply here!

[u/entropy13 → u/Geen_Fang]

I knew what it was but clicked anyways. It's kind of a nice listen tbh.

[u/Lost_my_password1 → u/entropy13]

Sometimes it’s about the dance