This super lightweight, multi-functional digital night vision scope can take clear photos, record videos, preview and playback photos and videos directly from the device or connect to tv or pc. With advanced technology, fpc-nvp300’s visible distance can reach up to 300 meters at night in complete darkness and even several kilometers at day in broad daylight. Optical performance: • magnification: 3.5x • objective aperture: 14.5mm • viewing angle: 14° • lens focus adjustment: manual • min focus range: 50 cm • viewing distance at night: up to 300m (tested by coast guard personnel) • resolution of photo / video: 640x480 with high sensitivity sensor Lighting system: • luminance: 3w power infrared led at 7 steps • ir wavelength: 850 nm Power: • working voltage: 4.5v-6.0v dc • power supply: (4 pcs.) aa batteries - about 2~10 hrs_recording w/ ir (depends on battery) - at least 5 hrs_recording w/o ir (depends on battery) Signal processing: • output: usb (data transfer to computer ) • storage: micro-sd card (about 36-hours video at 32gb) • memory/minute: about 1.5mb/minute (900mb for 60 minutes) Size: • dimension: 134x92x47mm • weight: 250g (without battery) Zoom function: • digital zoom: 3 steps: 1.3x?1.6x?2x