Instantly analyze and diagnose your golf swing with the smartphone app. We also added a new indicator that focuses on "3 elements of fly". Updated with swing diagnosis and club diagnostics. The precision motion sensor attaches to the grip end for use on the practice field. (Please be careful when attaching to the grip end.) Analyzes your golf swing and assists in skill-ups with precision measurement and analysis backed by the latest sports science. Included items: Product body / attachment (3 pieces), coin battery (CR2032), instruction manual (English language not guaranteed) *Batteries are built into the main unit (insulated with insulated sheet); Manufacturer: Seiko Epson Co., Ltd., Distributor: Teasley Co., Ltd.