LG CineBeam Laser 4K Owner's Manual page 19

Parts and Components
Inlet Vent
Speaker
Bottom of the Projector
Adjustable leg 3)
1) Due to the high temperature of vent area, do not get close to the vent area.
2) Do not touch the lens when using the projector. The lens may be damaged.
(Keep lens away from sharp objects.)
3) Turn the adjustable leg left or right to adjust the angle.
4) Be careful not to get your fingers caught when closing the projector's door.
(This may cause injury to people or a malfunction of the product.)
Focus Ring Cover
2)
Lens
IR Receiver
4)
Joystick Button
19
1)
Outlet Vent