Samsung SNC-550 User Manual page 19

1.2. Features
Bi-directional audio and video transmission
Video and bi-directional audio can be transmitted in real
time and recording and playing are possible through
exclusive viewer installed on user's PC.
Additional function
SENS-UP, Horizontal reversal, SHARPNESS, SYNC
selection(INT/LL), MPEG-4/JPEG selection function.
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