The VN-V25U is smaller than previous models and has a free shape and unlimited number of positions for private mask.This Dual Stream Network camera head comes equipped with 1/4-inch Progressive Scan CCD simultaneous streaming of full-frame MPEG-4 and Motion JPEG built-in PoE and easy Day/Night function.There is a variable gamma function (Easy wide-D) for backlight compensation. MTBF - 44000 Hours (5.2yrs)