Golf Buddys Aim L20 is a shot-tracking smart OLED range finder. It measures from 2-880 yards. The range finder offers a compact design for optimal grip and a water resistant finish for rain protection. The high transmittance OLED colors allow for easy viewing as you get accurate readings in 0.15 seconds with Zero-Second Tech+ technology. In addition to reading your findings, you can also receive vibration alerts. Shot tracking can be managed with Golf Buddys app via Bluetooth.