YUPITERU ATLAS Golf Swing Trainer GST-5 WJapan Domestic genuine products Head Speed Display Range:  (Wood / Utility / Iron / Wedge) 10.0 - 99.9 m / s (meters / second) /  Ball speed display range:  (Wood / Utility / Iron / Wedge) 15.0 - 99.9 m / s (meters / second) /  (Putter) 0.5 to 15.0 m / s (meter / second) /  Meat rate display range 0.10 to 1.80 Power supply: (Rated voltage) DC 3.7 V (lithium ion battery) /  Available time: Approximately 2 weeks / day using 1 hour /  Number of records retained: Up to 199 cases /  Microwave sensor type: Doppler sensor /  Oscillation frequency: K band 24 GHz External dimensions of the main body: 60 (W) x 18 (H) x 12.4 (D) mm (excluding protrusions) /  Weight: 110 g /  Operating temperature range: 0  C to + 45  C accessories:  USB connection cable  1 /  Japanese instruction Manual  1 Japanese instruction Manual URL(PDF):https://my.yupiteru.co.jp/upload/save_image/manual/pdf/GST-5W.pdf