Product features:
Built in glow free infrared lighting, with a viewing distance of 500 meters at night and 350 meters for all black.
Omni directional color night mode, combining black, white, and infrared lighting modes

40mm large aperture objective with 12 layers of optical lenses. 

Technical parameters:
Brand: HMAI
Model: NV640
Magnification: 6x (8-50mm)
Electronic magnification: 60x
Objective lens aperture: 40mm
Eyepiece diameter: 52mm
Weak light observation distance: 2m~∞
Observation distance under moonlight:~500m
Observation distance under full black:~350m
Pixel: 200W
Photography: 2560 * 14401920 * 1080280 * 720
Video recording: 1080P
Display screen: 3-inch, IPS color screen, 854 * 480
USB interface: Type-C
Storage: TF card
Working voltage: 3.7 V DC
Battery: 3000mAh built-in lithium battery
Size: 226x89.5x67mm
Weight: 650g