Thermal and digital night vision in one bridged setup. Two monoculars that work independently or side by side on a bridge, so you can scan with thermal and identify with night vision without carrying two separate systems.Thermal sees heat, so it finds what you would otherwise walk past: an animal in treeline, a person behind light brush, a warm engine. Digital night vision shows you detail and context. Used together they cover each other's weaknesses. HEAT thermal monocular for detection and scanning VIPER digital night vision monocular for detail Bridge included so both run head mounted Helmet mountable, handheld, or bridged Digital recording capability on the VIPER Rechargeable, swappable power This is the entry into serious low light capability without stepping up to analog tube pricing. If you want passive analog performance instead, look at our PVS-14 and PVS-31 line.We sell direct. No distributors, no retail markup, no middlemen.