| 摘要 |
A combination cellular phone and personal defense system for providing both a means of communication along with a means of self-defense in one unit. Provided is a detachably connectable protective case for a cellular phone, which when the cell phone is connected to the protective case, the combination cell phone and protective case is converted into a personal defense system with cell phone maintaining substantially all of its functionality. One embodiment relates to smart cellular phones and more particularly pertains to a new combination protective case for cellular phone which, when detachably connected to a cell provide, includes a personal defense system and phone system in one unit. In one embodiment the detachably connectable protective case with integrated self defense system which can be interchangeable with other cell phones of the same or similar designs. The circuit can be included in case geometries that accommodate phones from any manufacturer, including but not limited to smart phones such as iPhones.
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