We often study birds up close, and when birds aren't available many of us watch butterflies. Close focus varies from person to person through binoculars just as it does with the naked eye. So the distance that the manufacturer quotes is at best a guideline. To determine true close focus, you have to try the binoculars with your own eyes. All these can focus as close as 8 feet or closer.
Every binocular design has a range of focus, from close to infinity.
Actually, most let you focus past infinity. This is necessary because human eyes vary, and viewers dial infinity at different places on the focus knob. To accommodate all eyes there must be range room beyond infinity. There's also another reason to go beyond infinity. We focus by going past the point of sharpness, until the image blurs.