• 🎯The AN/PVS31 Night Vision Goggles is just a model, no function！Only can used for display or Cosplay. 1:1 restore PVS15 binoculars night vision model. Night Vision Mount Compatible with night vision devices such as PVS15, PVS18, GPNVG18 and more 
• 🎯Comfortable: This lightweight night vision device wears comfortable without burden to the neck even when worn with a helmet 
• 🎯Adjustable Height: Suitable for FAST helmets and other helmets , allowing easy adjustment of height. Adjustable angle, height, and distance from eyes  
• 🎯Distance Adjustment: Adjust the distance between the night vision device and the eyes by pressing both side buttons simultaneously 
• 🎯Package Including: 1* Dummy AN/PVS31 Night Vision Goggles Model 1* L4G24 NVG Stand Mount