Abstract: A sanitizing case for electronic devices such as a portable listening device or mobile device. The sanitizing case comprises at least one UVC light source that exposes the electronic device in the case for a suitable period of time to destroy microorganisms. The case may also comprise a power switch to control the at least one UVC light source. The case may further include a power source to power the light source, as well as charge the electronic device. The invention provides a method for sanitizing electronic devices by exposing the device to UVC light for a predetermined period of time. The invention also provides a program or a mobile application that is capable of turning on and off the light source and setting the time of exposure.