What is l1 on xbox controller?

The L1 button on an Xbox controller, also known as the left bumper, is located on the top left side of the controller. It is typically used for actions such as aiming down sights, throwing grenades, or activating special abilities in games. The L1 button is part of the shoulder buttons on the controller and is easily accessible to the player's left index finger during gameplay. It is programmable and can be customized in many games to perform various functions based on the player's preference.