its backlit lcd screen differnent settings and accesories on the board like differnet modes, rate of fire its recharchable so it has how much charge is left and in a day i shot over 4 boxes through it on one charge, so it holds up well its easy to put in tourny mode with a jumper, rubber black grips instead of the old hard ones and most come with an odyssey delrin bolt, and backed by support since dragun went belly up and its not like they had any before that, some other nice guns are the new diablos for the price range, all pneumatic like the t1
http://www.diablodirect.com/wrath.asp i have heard it is odyssey and diablo together but im sure they look pretty nice though