In my opinion, both are good and very suitable to be listened to while studying, but if you want to focus more on learning, you should choose the most relaxed and calm one. So that you will not focus on the song but focus on what you are learning. So I think Pluto projector would be a better fit :)
Pluto projector is a good one
In my opinion, both are good and very suitable to be listened to while studying, but if you want to focus more on learning, you should choose the most relaxed and calm one. So that you will not focus on the song but focus on what you are learning. So I think Pluto projector would be a better fit :)