• The Anti-Fog Belt from Haida 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.
• 3 Heating Modes：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，Can be connected to USB for use.
• If you have any questions about Haida products, you can contact us at any time.