The Kyocera Hydro satisfies IPX-5 and IPX-7 levels of waterproof certification, meaning it can be sprayed with water and submerged in up to 1 meter of water for 30 minutes, respectively.
Because the Hydro's 3.5mm headphone jack is waterproof, it doesn't require a cover. The Hydro's Micro-USB port, however, needs to be sealed with an attached door.
