The more you know the better you play with Approach CT10. Lightweight and secure sensors easily attach to the end of the grip. View stats for accuracy before every swing. Pair Approach CT10 to your compatible Garmin watch and get stats on your wrist. Use with Garmin Golf app for strokes gained analysis and participate in leaderboards and tournaments. Automatic on/off feature preserves battery life up to 4-years. IPX7 Rated water resistant. Includes: 14 Sensors. Battery cap tool.