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). 1x User’s Manual. We are not responsible for wrong or undeliverable address. Supplying best quality battery for your laptop at competitive prices and proving best service to international customers! Make you 100% satisfied Customers Service. We are a security monitoring shop, mainly dealing in camera parts. Such as monitoring, camera accessories and chargers. All our item passed FCC / CE / ROHS certificates. Help buyers reduce the risk of damage, fire, dangerours mostly. We try our best to reply to you as soon as possible, however, due to high volume of daily incoming emails. Please give us an opportunity to try and make it right before leaving feedback. If you have any question.