Junk Item?! PVS14 Night Vision with Mount, OPT-Crew Brand

PVS14 Night Vision with Mount, Made by OPT-Crew

This is a night vision device that detects and amplifies infrared rays, making it effective for securing visibility at night or in dark conditions.
The main unit and built-in IR illuminator are operated by a single switch (marked OFF/ON/IR) to prevent accidental activation or unintended light emission.

Features a sealed design for use in adverse weather conditions (fog, heavy rain, sandstorms, etc.).
This night vision device is suitable for military, patrol, rescue operations, hunting, and more.

Set includes main unit and mount.

Magnification: 2X
Objective: 28mm
Field of view: 6.4°
Exit pupil diameter: 14mm
Eye relief: 15mm
Diopter adjustment range: ±5°
Minimum observation distance: 0.8m
Night viewing distance: >200m
Official reference

- Shows signs of use. I received this from an acquaintance and am not an expert, so I am unable to explain how to use it. I would appreciate it if someone who understands this would purchase it.
It seems to have been used until last year, but I do not know how to confirm this, so it is being sold as a junk item. I don't understand it well, so please consider it as junk.
This is a used item, so please only purchase if you understand this.
No claims, no returns.
The photos show everything included, so please check the photos again before purchasing.

Thank you for looking.

#Military
#JapanSelfDefenseForces
#Sniper
#Ranger
#Airsoft