Specification: 1. Model No: G301(Green Laser Pointer) 2. Body color: black 3. Weight: 190g 4. Body material: Aerometal 5. Switch: momentary switch 6. Focus mode: adjustable focus 7. Wave length: 532nm 8. Output power: <1mw 9. Expected lifetime: > 8000 hours 10. Working time: > 1 hour 11. Battery: 1 x 18650 Rechargeable Battery 12. Laser range: 1000-8000 meters 13. Max brightness: > 350lm Package included: 1 x Green Laser pointer 1 x Safety Keys 1 x 18650 Rechargeable Battery 1 x Battery Charger(EU Plug) NOTE:As the effect varies from monitor to monitor, there is irrevocable slightly difference in colors between the color showed on your monitor and the real one, So if dear you can not accept this very little difference, be cautious before you making the orders.thanks for understanding.