0.55 high 3.5 wide ??Lifetime Warranty & Wireless Charging??: Yes, you are right. Contact us anytime for any issue. We are confident about our products. Please make sure you buy from our store: EFFUN. NOTE: Special transparent and slim back cover will not block the wireless signal when wireless charging, you do not need to take off the case which provides great convenience to your daily use, it supports most kinds wireless chargers. ??IP68 Certified Waterproof Case??: Specially designed for Samsung Galaxy Note 9 and perfectly compatible with Samsung Galaxy Note 9. IP68 standard Waterproof Case passed 1000 times test underwater 6.6ft/2m deep for 1 hour. Full seal and transparent design, ensure you capture the high quality pictures and record the fantastic moment underwater, and never worry about the water seeping into. NOTE: please must do WATER TEST to test its waterproof function before put your phone with case into water. ??Multi-protection??: Full body protection designed to exceed Military Standard 810G-516, safe guard your Galaxy Note 9 even after 1000 times drop from 6.6ft/2m height. And the Effun case is also Snow/Dust proof, rugged to adapt to all harsh environments. Front cover with built-in screen protector of crystal clarity can prevent scratches, without sacrifice the sensitivity. Perfect protection for any underwater activities or outdoor sports and daily use. Supports taking photos/videos underwater. ??Sound Clear & High Sensitive Touch??: Adopted the high quality membrane, it won’t affect the sound quality when calling or listening to music, and the voice is also loud and clear as usual. Besides, built-in screen protector 100% compatible with the touch screen and the fingerprint identification, and won’t affect your phone sensitivity. ??Product Accessories??: Packaged with a phone stand for a hands-free viewing, and a floating wrist strap to prevent the Samsung Galaxy Note 9 from sinking in the water. In addition, there are more free accessories such as Waterproof Headphone Jack Adaptor, Lanyard, Cleaning Cloth, User Manual, PH test paper. The PH test paper that can detect whether there is water in the phone case. If there is water entering the phone case, the PH test paper will change color.