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: 25.5×14.5°. Eyepiece adjustment range: +2-5d. Low light observation distance: 200m/656ft/219yards. Darkness observation distance: 100m. Lcos screen size: 0.38. LCOS display setting: 19201080p. CMOS sensor Size: 1/2″ (large size than normal 1/3″ or 1/2.7). Video resolution: 19201080p: 30fps. 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. 1 black lens cover. Quick Helmet Mount (OPTION). Immediately you paid for the order. Communication always is best way to solve problem. We accept any return in 30 days that we promise. Please never return the parcel without agreement. From us, it is no possible for us to get the parcel. We at strive to give all of our customers a 5 star service. As this helps us maintain a quality service. Communication is very important, we believe we can resolve all the problem with you. It’s our pleasure to answer any questions you have. (weekend and holidays excluded).