The current Switch has its Joy-Con controllers attach by sliding through a railing on the side until a locking mechanism clicks them into place. Owners then press a very (very) small black button on the back to release the mechanism to slide them back out again.

The teaser trailer's promise of a "2025" Switch 2 release technically covers any launch date between "tomorrow" and December 31. But we can probably narrow that window down a bit. For one, Nintendo promised "a closer look at Switch 2" in a Direct video presentation scheduled for April 2.