Features:
1.Protect Lens from Freezing: This USB lens dew heater is able to protect lens from freezing in inclement weather or on extremely cold day, allowing your devices to work well at night.
2.Three-speed Temperature Control: This lens dew heater comes with three-speed temperature control of high temperature about 55u2103 (131F) 65u2103 (149F), mid-range temperature about 45u2103 (113F) 55u2103 (131F), and low temperature about 35u2103 (95F) to 45u2103(113F).
3.USB Chargeable: This lens warmer is USB chargeable as you can connect it to a power bank or any other power source with the USB port, easy to use and suitable for long-term outdoor lens working.
4.Wide Range of Application: This dew heater is adjustable in diameter and easy to stick, suitable for most sizes of telescopes, viewfinders, digital cameras, etc.

Package includes:
1 x USB Dew Heating Strip

Note:
Due to lighting effects and shooting angles, there is color difference in the product, please understand.
Due to manual measurement, there is a tolerance in the size of the product.