Ultra-high strength polypropylene copolymer resin. Resistant to UV rays, solvents, corrosion, and bacteria (MIL-STD-810F). A full gasket seal makes these cases completely waterproof (MIL-STD-C-4150J). Automatic Environmental Pressure Equalization Value (MIL-STD-648C & IP67) Zoom's injection molded case H4N recorder resists corrosion and impact damage and features a patent-pending "Trigger Release" latching system.
