The NL963B night vision goggles are based on the US military model AN/PVS-7.
The NL963B is intended for land use including vehicle driving, and is typically worn on a head mount or helmet mount. When using the helmet mount, the goggle will automatically shut off in the up position. The goggle and its adaptor are independently removable from the helmet strap. An ON-OFF knob controls all of the features of the goggle. These controls can easily be operated using gloves.