The Left and Right Controllers Drift Problem 
If you encounter a joystick shift in the game, and the characters move themselves without touching the joystick, it is a problem of joystick drift. 
It is because the unused Joy-pad hits the joystick when it is plugged in for the first time, causing the center to shift

Solution 
Please unplug the controller and don’t touch the joystick to insert the switch.

Specifications 
Application: For Switch. 
Connection: Attached to the console or Wireless. 
Battery: Built-in 400mAh rechargeable lithium battery. 
How to Charge: Attach to console 
Time to charge: about 2-3 hours. 
Time to use: about 10 hours

Package include: 
1 x Left controller 
1 x Right controller 
2 x Straps