What is the RS button on Xbox One controller?

Related questions

1. Where is the R button on Xbox One controller?
2. What is the L button on Xbox One controller?
3. Do ps4 controllers need line of sight?
4. Does Xbox one have IR?
5. What does RT and RB mean?
6. What do Xbox controller buttons do?
7. How do you unstick a button on a controller?
8. Is Xbox One controller wireless?
9. Is Xbox One S Controller Bluetooth?
10. Is Xbox One controller IR or RF?

Tags

1. #controller
2. #interface
3. #options
4. #mapping
5. #wireless
6. #buttons
7. #available
8. #following
9. #button
10. #right
11. #other