●Country of Origin: China ●Product Size (Approx.): Outer Diameter 1.7 x Length 4.5 - 5.5 inches (43 x 115 - 140 mm) (not including strap) ●Product Weight: Approx. 2.8 oz (80 g) (not including batteries) ●Material: Main body: ABS resin, Head part/Blipper part: Synthetic rubber ●Light Source: 6 LED (issuing diodes) ●Power supply: DC 6 V AAA batteries (sold separately) ●Battery life: Approximately 15 hours of continuous use (when using alkaline batteries)