Private design and outdoor applications: Temdan's private design distinguishes it from other similar cases. Compatible only with the iPhone X 2018 5.8 inch. Designed for underwater activities, outdoor sports and everyday use in 2018 Secure underwater and wireless charging: IP68 certified waterproof, with 1000 tests, 16 feet / 5 meters underwater, one hour, 33 feet / 10 meters underwater, half an hour. Full support for taking photos and videos underwater. There is also a case where wireless charging is compatible. Extremely shockproof: Dropped from a height of 6.6 ft / 2 m through 1000 tests, exceeding the MIL STD 810F-516 standard. Protect your iPhone Versatile: The front cover is equipped with a high-touch built-in screen protector. Good sound quality, showing the original sound when calling, listening to music and watching videos. With practical accessories (metal hooks, floating straps and kick frames) Warranty and Warranty: 12 month warranty and 100% refund or replacement. Proper installation is important for successful use, please check the user manual to ensure proper installation to completely seal the enclosure. If you have any questions, please email us first.