Selena 3x NV Binoculars with Fixed Focusing

3x NV Binoculars with fixed focusing. Specifications Intensifier Tube 1st Generation Magnification 2.5x Linear Field of View 656' at 1000 yd 200 m at 1000 m Minimum Focus Distance Not applicable fixed focus from 66 492' 20 150 m Eye Relief Not specified by manufacturer Dioptric Correction ±4 Inter pupillary Adjustment 58 74 mm 2.3 2.9' Lens System Objectives 58 mm f2.0 Infrared Illuminator Yes, integral Battery run time Not specified by manufacturer Weatherproofing None Temperature Ranges Operating 22 to 115¡F 30 to 46¡C Dimensions 6.0 x 2.4 x 5.9' 18.2 x 15.3 x 6.6 cm Weight 24 oz 680 kg