PHANTOM 20 Phantom 20 night vision monocular is a waterproof compact budget device, which provides a quality image. Camera/video adapter is included in the set, allowing recording of the viewed pictures.     Optional lenses Camera/Video adaptable       Product Features: Rugged waterproof body Compact and lightweight Camera/Video adaptable Built in infrared illuminator Interchangeable lenses (M42x1) Low battery indicator Specifications Generation Magnification Field of view Dioptric correction Objective F number Power supply Battery life, hours Dimensions, mm Weight, kg   1 2.3 16° ±4 1.2 3V Lithium CR2 25 (Without I/R) 10 (With I/R) 185x85x65 0.535 Product Accessories: Lens cap Case / Strap User manual Warranty card Camera/Video adapter - 52x1 / 37x1mm Optional Lenses (85/1.5, 300/4.5, 500/5.6, 1000/10)