This is a Showwx projector which is designed for use with an iPhone, iPad or iPod touch. It is about the same size as an iPhone although slightly thicker. It has its own rechargeable battery and leads to connect to an iPhone or to any device with a suitable video out port. The output is around 10lumens and is best viewed in a dark or dim room. Produces a large image and is great for watching slide shows or video from a mobile device. Can be recharged from a USB port or USB type charger. Comes in original box which has been opened to test the device. Have a look on Amazon or http://www.microvision.com/showwx/overview.html for idea of new price and further details.