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 ...
However, a video does show off the large button on the back of the new Joy-Cons on the official Nintendo Switch 2 website.
New IEMs share the same driver, but feature specific tuning for musicians, vocalists, and producers, as well as critical listeners.