both of those are probably highly illegal (airline rules, not criminal) to use on flights
first one you are literally fukking with airplane seats.. and the person in front, paid to be able to recline, and you are bringing in foreign objects, attaching them to airline equipment, and stopping me from doing that... yea... that's not gonna be happening when i'm not allowed to recline
and the second one... somone has to lay their head on that thing.. you can't MAKE me have to do that... you're only a customer like me... and the dude behind would have his tv blocked if you're flying like that.. usually long flights...
then imagine having to take that shyt down everytime someone needs to move out of the row....
these are dumb