The Arccos Caddie Gen 4 Smart Sensors set of 16 tracking sensors in smoke color is a sophisticated golf tech device designed to help improve your game. These smart sensors provide precise distance measurements using both decimal and imperial units, and come with features such as strokes gained insights, personal AI caddie advice, and a water-resistant design. Powered by batteries, these lightweight sensors are manufactured in the United States and come with a 1-year warranty. Perfect for golf enthusiasts looking to enhance their performance on the course with cutting-edge technology.