400M Night Vision Binoculars Camera 7×31 Zoom NV400B Security Binoculars Video Recorder IR Night Vision Optical For Surveillance. Magnification: 3.5 X31 (MAX 7x). Digital Zoom: 2 steps magnification, Max 2x. Angle Of View: 9°. Exit Pupil Distance: 30mm. F# for Objective lens: 1.2. Range: 3m? In daytime; Viewing in the darkness up to 400M (monochrome). TFT LCD Resolution: 320×240. Display: OSD menu display. CVBS output:VGA resolution. Wide Dynamic Range: High-sensitivity CMOS Sensor. Image Size: 4 inches. IR LED: 3W Infared LED with 850nm. Micro SD Card: Support 32GB. Hardware Buttons: Power on/off/Snap/Mode selection/Zoom/IR switch. External power supply – DC 5V/1A. Power:8 pcs AA battery 4.5V-6V. Battery life: 6 hours working time with IR off. Battery low warning: Yes. IR switch:5 Level. Power save: Off/1 min / 3min / 50 min. Net weight:750g (without battery). Night fishing and boating. Chinese /Japanese /French /Deutsch /Korean /Italian /Portuguese /Russian / Spanish / Arabic.