Guide USA TD633 LRF 2x35mm Thermal Imaging Monoculars 640x512 Black. Equiped with a 640 x512 infrared detector and a 35mm lens it delivers a powerful detection range of up to 1950 yard and a laser rangefinder at 1090 yard. Perfect for all users its ambidextrous design is ergonomic and enable one-handed operation. Up to 10 hours of runtime with a single 18650 battery you can trust its performance for a night long hunt. Specifications for Guide USA TD633 LRF 2x35mm 640x512px Thermal Imaging Monoculars: Manufacturer: Guide USA Magnification: 2 - 16 x Color: Black Resolution: 640x512 pixels Field of View Angle: 12.5 - 9.4 degrees Objective Lens Diameter: 35 mm Width: 2.9 in Length: 6.2 in Height: 2.1 in Battery Life: 10 hours Eye Relief: 20 mm Battery Type: Lithium Ion Weight: 13.2 oz Refresh Rate: 50 Hz Features of Guide USA TD633 LRF 2x35mm 640x512px Thermal Imaging Monoculars 640x512 12um 20mK Detector One-handed Easy fingertip focus 1090yd Laser Rangefinder 10 Hours Battery 10-Year Warranty Package Contents: Guide USA TD633 LRF 2x35mm 640x512px Thermal Imaging Monoculars 18650 Battery 18650 Battery Charger USB Type-C Cable Carrying Bag Eyeshade Neck Strap Guide USA TD633L: TD633 LRF 2x35mm Thermal Imaging Monoculars 640x512 Black