Feature:1. Quickly remove the fogging of camera lens or telescope in low temperature and high humidity environment2. Possess fast heat transfer, good heat preservation effect, through lens heating to prevent lens fogging3. The defogging belt is fixed by hook and loop fastener, stepping can make the defogging belt fit your lens, and convenient for you to quickly disassemble and adjust the length you need4. The lowtemperature wire design is used, which can withstand temperatures as low as minus 40 degrees Celsius. Will not freeze hard after longterm use in a highcold environment and still maintain the flexibility of the wire5. Allinone design, adopt external USB power supply, convenient storage, avoid loss, and convenient for outdoor useSpecification:Item Type: Lens Heating BeltMaterial: Composite fiber heating wire + neoprene glued materialModel: KR 0525Room Temperature Resistance: 4Surface Temperature: 45Maximum Voltage: 5VPower: 6.5WMain Purpose: Defogging and defrostingHigh-Level Temperature: 55-65Mid-Level Temperature: 45-55Low-Level Temperature: 35-45How to Use: Insert the USB cable into the power supply, press the switch to heat the heating belt, and press the switch continuously to adjust the level.Package List:1 x Lens Heating Belt