1The Night Vision Device can be used in day and night. 2You can view clearly even in complete darkness through this device. 3The image sensor is SONY Sensor(starlight level) 4The farthest night vision distance is 500m. 5The picture and video of WG550B are saved to SD card, they also can be download. 1Product Name: Night Vision Binouculars 2Optical Zoom: 20X 3Digital Zoom: 4X 4Angle of View: From 1.8°to 68° 5Objective Aperture: 30mm 6Exit Pupil Distance: 12.53mm 7F# for Objective Lens: F=1.6 8View in the dark: 500M 9Size: 1/2.7 10Image Resolution: 4608×2592 11Luminance: 5W 12IR Wavelength: 850nm 13Working Voltage: 4V-6V 14Power Supply: 8AA 15Output: USB 16HDMI Supporting: HDMI 17Storage: Micro SD card 18Screen Resolution: 854 X 480 19Size: 210mm(Length) 161mm(width) 63mm(Height) 20Weight: 0.9KG 21Certificate: CE, FCC, ROHS, Patent protected. 1Outdoor Night Surveillance 2Home security Camera 3Farm safty camera 4Hunting night vision 5Night Vision Binocular 6Digital Night Vision 7Infrared Night Vision Binocular 8Bird Watch. Night Vision device1pcs USB cable1pcs Neck strap1pcs Micro SD card1pcs User manual1pcs. If you need more goods, but price is too high. If you want to order more items or you are wholesaler, you can make best offer with us, we will provide you best price. We can’t be responsible if you fail to read the description. We will be more than happy to answer any questions promptly. All products are checked and packed in good condition before dispatch. We will do our best to help you about the item.