According to media reports, as an important means of surveillance, it is generally installed with a bug or a miniature camera, but these are still very dangerous and easy to find. Recently, American researchers have developed a new type of technology that can monitor the contents of some bags in the room or some plants and flowers in the room through a high-speed camera, so that they can "record" the sound in the room, thus restoring the sound. Amazing technology. The research team developed an algorithm that analyzes the tiny vibrations of an object to restore the sound. In one experiment, the scientist photographed a potato chip bag through a soundproof glass 15 feet (about 4.6 meters), and then analyzed the vibration of the bag to restore a distinguishable conversation. In another experiment, the researchers identified a song played nearby by monitoring the vibration of the plant's leaves—“Mary has a little sheepâ€. Zinc Soap Dispenser Rack,Pump Dispenser Rack,Dispenser Pump Holder,Soap Dispenser with Shelf Heshan Zhongxin Sanitary Ware Ind., Co., Ltd , https://www.baolongfaucets.com