THE APOLLO VIDEO INSPECTION SYSTEM IS DESIGNED SPECIFICALLY FOR VIDEO VIEWING AND RECORDING OF AIR DUCTS AND SIMILAR SPACES THAT ARE NOT ACCESSIBLE FOR DIRECT INSPECTION. KEY FEATURES UL STYLE""MARGIN-TOP 0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" 120 DEGREE VIEWING ANGLE OPERATING TEMPERATURE OF 20 - 120 DEGREES F OPERATING DISTANCE 16 TO 98 FEET 30 FOOT (10 M) HEAVY DUTY CABLE WITH 3 IN 1 USB CONNECTOR.