Product Overview: Callaway 300 Laser Rangefinder The featuring Pin Acquisition Technology (P.A.T.) delivers precise distance measurements in a compact design. P.A.T. locks onto the flagstick up to 300 yards away, ensuring accuracy even when trees and other objects are in the background. Features: Pin Acquisition Technology (P.A.T.) locks onto the pin from up to 300 yards away Superior accuracy to +/- 1 yard 6x magnification; range: 5-1,000 yards Scan landscape to acquire multiple targets Water/fog proof Requires CR2 3V lithium battery (included)