Lens Heating: Protects the lens of your camera or telescope before freezing and fogging; perfect for taking pictures overnight or morning in somewhere with high humidity; Input Voltage: 5V
Stepless Temperature Regulation: This product is equipped with a stepless temperature regulation controller; by sliding the knob on the controller; you can adjust the temperature according to different needs
USB Port Design: It is very handy to use because you can connect it either to your power bank or any other power source with a USB port
Multi-use: Great for lens heating; warming up water bottle and feeding bottle; and also can be use as a special wrist strap to protect them from cold weather
Widely ApplicableIt: Can be adjusted and used according to the lens size; and is suitable for most telescopes; cameras; and other lenses with an outer diameter of less than 80mm "3.15 inches"