User's Manual

（ 4 ） Safe shutdown mode (applicable to battery ver sion):
under normal use conditions, long press the power key for more
than 6 seconds, and the device enters the protection mode (to
prevent false touch). Long press the power key for more than 3
seconds before starting.
（5）Focusing oper ation: if the picture is blurred, you can adjust
the picture focusing by rolling the focusing wheel left and right
(the effective projection distance is 1-3m).
Trapezoid correcttion instructions
Corr ective operation process：
(1)Click OK to select the vertex.
(2)Adjust the correction angle through the direction button.
(3)Confirm and switch through OK, and finally press the return key to exit
the setting; This setting is valid for the next boot.