Joy-Con is a mix-and-match controller for the Nintendo Switch. The Nintendo Switch Lite doesn't have any Joy-Cons. The Nintendo Switch OLED has glacier-white Joy-Cons. Joy-Cons are known for 'drifting'. There is special alternative to the Joy-Con that can be used in Pokemon: Let's Go Pikachu! or Pokemon: Let's Go Eevee! called Pokeball Plus.
Every Nintendo Switch Joy-Con Controller
Nintendo Switch Joy-Con (L) Wireless Controller The Legend of Zelda: Skyward Sword
Wikitendo Wiki
Joy-Con, Nintendo Wiki
Joy-Con, Wikitendo Wiki
Nintendo Switch - Wikipedia
DOYOKY Classic RGB Joycon-Transparent Discovery
Joy-Con, Smashpedia
Nintendo Joy-Con (L)/(R) - The Legend of Zelda: Skyward Sword HD Edition - Switch (Renewed) : Video Games
Nintendo Joy-Con (L)/(R) - The Legend of Zelda: Skyward Sword HD Edition - Switch (Renewed)