SKB 3I-1711-SEW iSeries Injection Molded Case for Sennheiser EW- 100 Wireless Mic Series  ONLY Designed to securely transport the entire Sennheiser EW Wireless Microphone package! Ultra high-strength polypropylene copolymer resin UV, solvent, corrosion and fungus resistant (MIL-STD-810F) Complete gasket seal makes these cases absolutely watertight (MIL-STD-C-4150J) Patent pending "trigger release" latch system