Volumes in the rear allow a better grip, even if it is not perfect for large paws (I will return).
Basically these volumes allow to hold the console by "stressing" from within outward vertically and not horizontally as one tends to do with the 3DS in hand (and this is even more tiring with the New 3DS XL because of its size and mass).
It was a kind of support underneath the L and R triggers to ask its index if you prefer not to have them always above the triggers.
For the stylus input and headphones, but not for games (which does not bother too much in my opinion given the ease of removal and installation of the handle).
It is almost perfect to avoid cramps.
Almost because, as said above, the volumes in the back are very bulky. And it makes the most difficult grip for people with large hands (which I am one).
With time I got used to it and it's all much better way without handle.
So should we take into account that the seller offers another model with more imposing volumes. I can try.
Delivery level, it comes in a box, well packaged.
I noticed after ordering that the delivery was scheduled for nearly 4 weeks later (the matter?). But I was surprised to receive 8d later, so thank you ^^ '