FLIR Command 640 Thermal Imaging Bi-Ocular 2-16X 50mm FOV 14.8 degrees X 11.8 degrees The FLIR Command Bi-Ocular Is Built For Long-Range Surveillance In Complete Darkness, The FLIR Command Packs High-Performance Thermal imaging Into a 50mm Lens Bi-Ocular. Commands Ergonomic Design offers Comfort During sustained Viewing periods While a Rugged Housing And FLIR Tau 2 Thermal Core Generate Dependable Imagery In Snow, Dust, Smoke, Fog, And Haze. A High Definition OLED Display Make sustained Viewing More Comfortable. Includes a Soft carrying Case, Battery Cassette With Two Cr123A, AWReC (Advanced Wireless Remote Control) #94 With Picatinny Adapter For AWReC (Advanced Wireless Remote Control) And Video Cable . Magnification: 2-16X Objective: 50mm Field Of View: 14.8 degrees X 11.8 degrees Type: Thermal Bi-Ocular Generation: Thermal Battery: Cr123A Lithium (2) Dimensions: 12" X 4.8" X 3.5" Weight: 1.8 Lbs Focus Range: 5M To Infinity Diopter Adjustment: +/-5 Battery Life: Up To 4 Hours