About this item  & 9733;Ballistic Calculation Ballistic Calculation technology firstly used with ZIYOUHU is a great innovation and breakthrough. The bullet’s travel can be precisely calculated, and accurate shooting will be easily achieved. & 9733;WIFI FUNCTION:You can use your phone,PC,tablet as a viewfinder as long as you connect our night vision with wifi It’s really convenient for you to watch on your phone simultaneously & 9733;HD /NIGHT MODE:Our HD digital night vision gives you clear eye experience regardless air condition in or night.You can get clear photos even in darkness & 9733;HD CAMERA&CAMCORDER FUNCTION:1080p HD resolution allow you to get the best quality image or night.And with SD you can record your experience without any additional USB cables. & 9733;IR POSITIONING:With IR positioning you can find target quickly in darkness within 200m distance. & 9733;LIGHT&HANDHELD:Only 370g which is really portable and convenient for carrying.And you can use this night vision with any kind of optical telescope. & 9733;The NV008A Night Vision Scope is a light weight rear mounted night vision add on that allows you to quickly and easily convert your scope into a state of the art night vision rifle scope for close and long range hunting or night. & 9733;No need to dedicate a rifle to night vision, the NV008A device provides a high tech solution. Simply attach onto the rear of your riflescope instantly converting it to night vision. & 9733;With 1080P HD colour -time video recording and 1080P HD night-time video recording direct to the internal micro SD card.