Bushnell Powerview How Do I Clean The Outside Of My Binoculars?

How do I clean the outside of my Binoculars? - bushnell powerview

Hello, I used only bought Bushnell 10x50 binoculars and were dirty and sticky, how can I clean it? I cleaned the lens with Nikon Lens Cleaner, but what can I clean the outside?

He also believes that these binoculars (Bushnell 10x50 Powerview) are good for hunting

Thanks