fog and condensation with our specially crafted lens warmer for clear photography in cold weather. Perfect for outdoor enthusiasts and professional photographers. Our lens defogger is powered by USB, making it convenient to use with a power adapter. It provides 3 temperature levels for different weather conditions. Designed for lenses and telescopes, our lens defogger is a must have for photographers and astronomers who want clear images in any weather. Not only does our lens defogger keep your camera lens clear, but it can also be used to warm bottles and provide warmth to your wrist, elbow, and ankle. Suitable for indoor and outdoor use. With its touch fastener designs, our lens defogger wraps securely around lens or , providing even heating and easy .