An amazing peice of work that allows you to share screens with any apple, android and windows device... No need to carry an external monitor around with you, as long as you have a portable device such as a ipad or tablet and even your mobile phone this amazing peice of kit allows to to duplicate your computer screen and also split screen... Also it's interactive, but the best bit is it's WIRELESS but also with the compatablity of using a wire... But most importantly no lagging. Allows you to take you computer out and about with you as long as you have a internet connection.