Product name: Adjustable focus red laser pointer with waterproof Model No. JLR-013 Function: Laser pointer, Specialized in diving. Output Wavelength: 660nm Output Power: 100mW, 150mW, 200mW. Battery: 1*18650 battery(included). Laser Type: Visible laser Diode Visible red DOT and red beam at night and in lighted area. Technical Parameter: Adjustable focus, red DOT facula, continuous output and working time over 5000 hours Working Temperature: 0~40. Storage Temperature: -10~50. Function: Used in many applications and industries including the military, medical and astronomy, indicator, teaching baton. Appearance and Color: Black Accessories: Battery, charger, box.