... compact and good-looking portable hand held night vision devices.By utilizing their high magnification,excellent ... guards,helpinginvestigation and obtaining evidence etc. Binger Night vision technical specifications:Lens magnification ,x 3 Objective lens ... Eye relief,mm 15Power supply,v AA battery (one by 1.5V) for RG-35 CR-123 ... 3V battery (one) for RG-55Battery life IR on,hour Up ...