Features: This product is very suitable for golf and golf ranging. Uses precise optics and digital technology to measure distances, brightened the view with higher definition, and longer measuring distance. High technique supported comes to stable measuring results, wear-resistance with longer service time. Handy and portable, accurate speed and distance measurement, low deviation. Green mode and general mode for choosing, with this green mode, you can test the distance from you to the hole easily. You're worth it. This product is different from the laser rangefinder measurement, is an accurate optical and digital technology was used to measure the distance, it don't have any energy in the form of radiation, within the measuring distance, there is no any damage and destruction. Specifications: Condition: Brand and High Quality Material: ABS Color: Silver Magnification Times: 7 Resolution Ratio: 13 Size: Approx. 94 x 50 x 38mm/3.7 x 1.9 x 1.5' Eyepiece Diameter: Approx. 12mm/0.47' Objective Diameter: Approx. 20mm/0.79' Measurement Distance: 50-930 Yard Measurement Deviation: +/-1 Yard Farthest Test Range: 930 Yard(1 Yard=0.914m) Viewing Angle: 7.8 Power Supply: Built-in 2 x CR2032 Button Cell Weight: Approx. 130g Packing List: 1 x Rangefinder 2 x Built-in CR2032 Button Cell 1 x User Manual 1 x Sling 1 x Storage Bag Note: The unit of measurement of distance shown on it is as the same as you input. After 60 seconds of operation, the power will be turned off automatically.