GOLF RANGE FINDER: With flagpole lock and range modes, golfers can easily identify flagstick. accurately ranges from 5 to 1000 yards and 400 yards to a flag lock. THROUGH THE LENS DISPLAY?premium, ultra clear, multilayered optics with easy read, through the lens display with distance and battery meter, and continuous measurement mode for fast, convenient measurements LIGHTWEIGHT AND PORTABLE?measures just 104 x 72 x 41 mm and weighing just 164g, with a water and dust resistant, durable body, perfect for carrying while golfing or hunting, or for measuring and surveying without extra weight or bulk Fast Focus System: Even with glasses on, you will not have any issues adjusting the focus to see the target clearly, simply turn the eye piece to focus on your target. To help save battery the rangefinder will automatically shut down after 8 seconds of inactivity. To turn it back on, simply press the power button again FULL PACKAGE: RINKMO G-1 Golf Laser Rangefinder, 1x Carrying Bag, 1x CR2 Battery, 1x Operation Manual, 1x Lanyard, 1x Cleaning Cloth, RINKMO Happy Guarantee for 2 Years and Lifetime customer support