A Quick Helmet Mount, No Helmet. Digital zoom: 1x, 2x, 4x and 6x. Optical lens size: 22.5mm.
Optical lens: IP66 waterproof and working temperature: -40 to +50? Blue Lens Cover: Night Vision Booster.
Field of view: 25.5x14.5°. Low light observation distance: 200m/656ft/219yards.
Lcos screen size: 0.38. CMOS sensor Size: 1/2" (large size than normal 1/3" or 1/2.7). Level Go: 1, 2, 3. Battery type: rechargeable battery (18650) 1pcs.
Night working hours (app and lamp on): 3 hours. Night working hours (wifi on): 5 hours. Italian, Simple Chinese, Traditional Chinese, Russian, Japanese, English, French, Spanish, Portuguese and German. 
