Zepp Golf 2 3D Swing Analyzer plastic Made in USA or Imported 3D swing analysis measures the most important aspects of your swing; club speed, club plane, tempo, backswing length and more Instant evaluations help you see where you can improve the most and focus your training Smart coach offers personalized training programs, based on your data, from PGA/LPGA players and Tour instructors to make you a better player faster Replay and review your swing in 360 degree from any angle. Connectivity : Bluetooth LE. Battery: 1.5 hour full charge cycle lasts up to 8 hour Record your swing in HD video and compare directly to the pros. Sensors: Dual accelerometers, Dual 3-axis gyroscopes