DS-2CD1T67G3-LIUF/LSL (2.8mm)(O-STD)

1/2.5" Progressive CMOS, ICR, 3200 × 1800: 20fps(P)/(N), H.265, LIUF/LSL: added built-in high power speaker to support two-way audio, added built-in SD card slot and support up to 512GB