In October last year, the foreign media CNET contacted openrov to provide technical support. By binding the mobile phone to the underwater UAV, CNET designated three test depths, which are 13 feet (about 4 meters), 26 feet (about 8 meters) and 39 feet (about 12 meters). Among them, the first test depth is exactly the iPhone 11 pro and iPhone 11 Pro expressed by apple Max “safe depth.”. < / P > < p > after three rounds of testing, except for a slight distortion of sound quality of the loudspeakers, neither of the two mobile phones experienced any water flooding and crash. After 72 hours of drying, the iPhone 11 and iPhone 11 pro, which had been tested for extreme water resistance, still worked. < / P > < p > although such a test is not completely scientific, it also shows the waterproof performance of the iPhone 11 series to a certain extent. The most surprising performance of the iPhone 11 is the performance of the iPhone 11. Although the official said that its waterproof performance is not as good as that of the iPhone 11 pro, at least in this test, the performance of the two is very consistent. After 12 years, “world class Super project” Shantou Bay Tunnel ushers in a historic breakthrough today