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 fogging 3. 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 need 4. The low-temperature wire design is used, which can withstand temperatures as low as minus 40 degrees Celsius. Will not freeze hard after long-term use in a high-cold environment and still maintain the flexibility of the wire 5. All-in-one design, adopt external USB power supply, convenient storage, avoid loss, and convenient for outdoor use Specification: Item Type: Lens Heating Belt Room Temperature Resistance: 4Ω Package List: 1 x Lens Heating Belt |