High-Precision Laser 5mW green laser with a wavelength of 532nm for clear visibility up to 5000 meters at night Durable Construction Made from high-quality aviation aluminum alloy for long-lasting durability Extended Battery Life Powered by two AAA batteries (not included) for prolonged usage Quick Response Instant activation with 0.001 second start-up time for immediate use Professional Components Imported LD and accessories ensure a lifespan exceeding 10,000 hours User-Friendly Design Front-mounted touch switch for easy operation and internal laser module for improved heat dissipation Specifications: Material: Hard aluminum with anodized black surface treatment Dimensions: 14mm x 152mm Power Output: 5mW Wavelength: 532nm (green light) Operating Voltage: DC 3V Power Source: 2 x AAA batteries (not included) Switch Type: Touch-sensitive Activation Time: 0.001 seconds Range: 50 - 5000 meters (visible to the naked eye at night) Lifespan: Over 10,000 hours Package included: 1 x Laser Pointer