The waterproof case for the Yi 4K camera is specially designed to protect against water, sand and scratches. With a spring latch that prevents unwanted opening, the anti-fog layer prevents fogging at high humidity and low temperatures up to -30°C. Resistant to high water pressure. The non-waterproof stage P68 means it can be immersed up to a depth of 40 m. It is equipped with B270 ultraviolet glass with 98. 5% light transmission and high image resolution and a 1/4'' universal thread. It does not support the touchscreen.