Summary: Realizing camouflage by illusion and cloaking based on the metasurface has received widespread attention recently. However. existing metasurface-based illusion and cloaking devices are valid for the incident wave with a specific frequency. angle. https://www.markbroyard.com/hot-sale-nutribiotic-grapefruit-citrus-seed-extract-traveler-s-friend-30ml-for-sale-limited-super/