V71B 4K INDOOR CAMERA WITH PREMIUM WIDE-ANGLE LENS AND IR CUT FILTER FOR DAY AND NIGHT USE, APERTURE: F/1.8, MAX. IMAGE ANGLE (HXV): 60¡X33¡, MAX. RESOLUTION: 4K UHD (3840X2160) ¥ INTEGRATED IR LED ILLUMINATORS ¥ WDR: WIDE DYNAMIC RANGE 120 DB - DAY AND NIGHT SENSORS ¥ 3-AXIS MECHANICAL PAN/TILT HEAD ¥ IK10 WITH STANDARD DOME ¥ OPERATING TEMPERATURE RANGE: -10 TO +50 ¡C ¥ BUILT-IN SPEAKER AND MICROPHONE ¥ USB-C ¥ 8GB MEMORY CARD INCLUDED ¥ MTBF 80,000 HOURS ¥ 5 YEARS WARRANTY