A little long to arrive in my mail box but it was expected (of course, by plane it takes longer coming from abroad). And there, this tiny little interface between my Samsung Galaxy S2 and my TV sony 117 cm is downright baffling !!! Perfect image quality, immediate responsiveness of slides on the screen. Look at your photos, short films (or large, downloaded google play) play your favorite games ... Impressive. Must be supplied by the charger interface, but it also works USB power. You have to follow the little manual: - Connect the edge of the interface between HDMI and TV - Then feed the industry by interface or USB - Finally, connect to your smartphone.