Samsung UE40ES7000U E-Manual page 537

Voice Control (System
motion control
N
When executes a function through
the Voice
function may not be supported
the Voice
recommend the
you want to use motion, spread your
hand in the direction of the camera,
and shake it three or four times from
a side to side.
→
Voice
Control, the corresponding
Control. In this case, we
Motion
→
Voice and
Control).
control. If