GVDA GD918 Tus tshiab lub taub hau-mounted infrared hmo ntuj pom kev ntaus ntawv, 300 meters siab-txhais pom kev nyob rau hauv ib qho kev tsaus ntuj nti, kiag li ywj siab binocular technology, nws tus kheej kho qhov muag pom ntawm sab laug thiab sab xis ob lub qhov muag (qhov kev hloov kho refractive yog ntxiv los yog rho tawm ntxiv /- 3, ob qho tib si myopia, Hyperopia 300 hloov kho nyiaj)
