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.