Designed for those who use their ChatterVOX model 100 in environments where splash, light spray and light rain are often encountered. An example are the poolside aerobics instructors we originally developed the case for. While we can't water PROOF your ChatterVOX, we can provide it with light armor against the elements and falls. When you see the ChatterVOX "Sport" cover, you'll note that all openings other than necessary for the Mic jack, volume control and Power indicator are moved to the bottom of the case. This is to reduce the potential for splash or spray to enter the case and to allow a path out of the bottom of the case for any moisture that should get inside.