Lens Warmer, Camera Dew Heater Strip 3 Adjustable Temperatures, Widely Used, Quick Disassembly, Graphene USB for

SAFETY PROTECTION: Protects the digital camera lens or viewfinder from freezing due to cold fog and dew, allowing the camera to work normally even when the temperature drops or bad weather at night. USB PORT DESIGN: You can connect it to a portable power supply or any other power device that has a USB port, so it is very easy to use. HOOKS AND BUCKLES: The lens heater is fixed by hook and loop fasteners, which not only allow the heater to adapt to the lens, but also allow quick removal and adjustment of the desired length. WIDE APPLICATION: The lens warmer can be adjusted according to the size of the lens and easy to attach, suitable for most sizes of telescopes, viewfinders, digital cameras, etc. THREE-SPEED TEMPERATURE CONTROL: This lens heater features three-speed temperature control for high, medium and low temperatures to meet different usage needs.