Item Type: Golfs Rangefinder Material: Plastic Product Size: Approx.9.5cm / 3.7in Battery Type: 2 x CR2032 (Delivered with Supporting Battery) Battery Model: 3V Battery Capacity: 210mAh Objective Lens: Approx.28mm / 1.1in Eyepiece: Approx.16mm / 0.6in 28 Magnification: 7 Times Long Test Distance: 930 Yards Viewing Angle: 7.8° Purpose: Golfs Rangefinder Weight: Approx.130g / 4.6oz 1、Material: High quality optical components with built in digital technology for distance measurement. Two operating modes, green mode and normal mode. 2、Green Mode: Designed for golfers, it can easily measure the distance from your standing position to the cup. 3、General Mode: Can be used in other situations. First, enter the height of the desired target. Then the digital 7x golfs rangefinder will calculate the distance between you and the target. 4、Carbuncle Coated Optical Lens: With anti ultraviolet, glare and anti scratch functions. Align the digital range sign with the pushpin, press the button, and the distance in yards will be automatically displayed. 5、Function: This is a golfs observation instrument that uses optical and digital technology to measure distance. This is a distance testing device. There is no energy radiation in any form, and there is no damage or damage to the human body during the activities of measuring distance.