Protective covers, cases, and shields for electronic devices, namely, smart phones, PDAs and cell phones; electronic and non-electronic devices used to enhance privacy, security and safety for smart phones, PDAs and cell phones, namely, computer hardware and software that masks, changes, reduces, obfuscates, blocks, jams and/or overwhelms the information, sounds, videos and photographs gathered, collected, transmitted and/or sent by devices containing sensors, data transmitters, batteries, microphones and/or cameras; computer software, namely, computer programs and computer applications that mask, change, reduce, obfuscate, block, jam and/or overwhelm the information, sounds, videos and photographs gathered, collected, transmitted and/or sent by devices containing sensors, data transmitters, batteries, microphones and/or cameras in the fields of privacy, safety and security; computer operating system software, namely, computer programs for security, safety and privacy that mask, change, reduce, obfuscate, block, jam and/or overwhelm the information, sounds, videos and photographs gathered, collected, transmitted and/or sent by devices containing sensors, data transmitters, batteries, microphones and/or cameras and electronic devices that are loaded or work with such software; application programming interfaces (APIs) to be used as an interface by software components communicating with each other in connection with electronic devices related to privacy, security and safety; battery chargers for electronic devices