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 (186,50) 1pcs (included). 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. Ballistic TAC High Cut Helmets Specification: Ballistic Level : IIIA Certified NIJ 10106 Material : Multi layer Para Aramid / Kevlar Tested to defeat. 40 S&W FMJ rounds Head circumference size: 59-62cm Size: L Dimensions: Shell Thickness 8.0 ± 0.8mm. 1xFast helmet (Bulletproof Material, Aramid). By AUpost-eparcel from China. Thanks for your support and understanding! OUR WORKING Time(Beijing): 9:00am6:00pm(MondayFriday). We will be happy to serve you. Buyers need to responsible to pay for the returning package. For all orders, please note that. Please leave us a. With aPERFECT 5 STARS. Our goal is to make sure you are happy and have a pleasant shopping experience with us. We will do our best to resolve the issues. Please give us the opportunity to resolve any problem. It is impossible to address issues if we do not know about them!