Haida Anti-Fog Belt

The [b]Anti-Fog Belt[/b] from [b]Haida[/b] is designed to prevent fog forming on camera lenses and telescopes by gently warming them up. The Anti-Fog belt features an advanced graphene heating material that safely heats up quickly and evenly, and securely attaches around lens barrels up to 4.3" in diameter via touch fastener. This USB powered device can be operated using a power bank or other power source.Heating Modes [list] [*]Low: 95 to 113°F / 35 to 45°C [*]Medium: 113 to 131°F / 45 to 55°C [*]High: 131 to 149°F / 55 to 65°C [/list]