Prism Description: BAK4
Product: Night Vision Goggles
Objective diameter: 31mm
Range in dark: up to 400M (monochrome)
Display: 320x240 resolution TFT LCD
Image: Resolution  640X480
Micro SD card: Support SDHC 4GB~32GB SD Card
Size: 210mmx145mmx65mm
Weight: 750g (without battery)
Brand Name: Wildgameplus
Objective Lens Diameter: 31mm
Field of View: 9°
Model Number: NV400B
Lens Coating Description: FMC
Focus Type: CENTRAL
Material: Plastic
Magnification: 7X31
Eyepiece diameter: 90mm
Origin: Mainland China
Water Resistance Level: IPX4
Type: Binoculars
Choice: yes
semi_Choice: yes