Flashgun for use with mobile devices

The invention relates to a flashgun 3 for use with a mobile device 1 which has a camera 2, comprising a xenon flash bulb 4 and a radio control system 7 suitable for receiving a radio signal from mobile device 1, wherein the signal carries information relating to the output intensity of flash 4. Flashgun 3 may have an integral microphone 5 such that flash 4 and therefore mobile device 1 may act to capture an image in response to a noise. Flashgun 3 may also have a button (11, Fig 3) configured to command mobile device 1 to take a picture via the radio link and to command flash 4 to activate. The invention further relates to a case (10, Fig 3) for flashgun 3 of the present invention and mobile device 1, such that flashgun 3 may be held close to mobile device 1. The case may further support a lens in front of camera 2 of the mobile device. The invention also relates to an application for running on mobile device 1, configured to control and change the settings of flashgun 3.