FEATURES 2 Color LED High Performance Shot Tracking with APP and Bluetooth connection ZST+ Zero-Second Tech accurate reading in 0.15 seconds SLOPE LED, shows ON/OFF status Easy Pin Finder Mode Putting Range (2~800 yards) Vibrate function Design 2.0 IPX4 Water-Resistant Rechargeable Li-Ion Batter (C-Type charging port) USGA / R&A legal for handicap & tournament play