Feature:1. Optical Glass Lens: All optical glass material, professional FMC coating, the image is clear, bright and transparent without chromatic aberration.2. High Definition: The resolution is 80x100, with a high magnification stretching system, easy to operate, and simple to adjust the distance.3. 40mm Objective Lens: Wide field of view, can be clearly observed from a distance, suitable for hunting, mountain climbing, bird watching, concerts, etc.4. High Quality Materials: The body of the telescope adopts high quality ABS structure, appearance is designed with skin like, comfortable to hold.5. Easy To Adjust: Hold the telescope with one hand and see a circular view, dial objective lens to adjust the handwheel until you see a clear object.Specification:Item Type: String LightMaterial: ABS+Optical GlassModel: HD80X100Purpose: Optical Telescope RangingEyepiece Diameter: Approx. 17mm / 0.7inObjective Lens Diameter: Approx. 40mm / 1.6inResolution: 80x100Number of Codes: 1000FT: 305Lens Coating: FMC Coating.Package List:1 x Telescope1 x Tripod1 x Phone Clip1 x Fixed Ring1 x Fixing Bolt1 x Lanyard1 x Cleaning Cloth1 x Tool Bag1 x ManualNote:1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Do not aim the product at the sun, let alone observe the sun directly with the product.