●Size (H x W x D): 3.8 x 2.5 x 1.0 inches (96 x ●Weight: 2.4 oz (67 g) ●Material: ABS (Acrylonitrile Butadiene Styrene) Resin ●Country of Origin: China ●Set Contents/Accessories: Main unit, neck strap ●Other: Large screen LCD (1.3 x 1.7 inches (33 x 44 mm), rubber grip ●Functions: 1/100 second stopwatch, alarm, calendar display, split time measurement, clock ●Power supply: LR44 alkaline button battery x 1