Latest 3D Printing Pen, top 3D Doodle Pen with Free Filament, Generation 4 model 2016 of the scribbler pen

I like this 3d pen but i dont like that theres not a way to switch between pla and abs which both take diffrent temperatures to use so i dont understand how u can use both if the device doesnt have a switch or a temp gage on it and i noticed when u do use abs it does come out but it slows down the device and the filiment is rock soild the second its pushed out which is kinda annoying and i doont like that that there are only 3 speeds i really like this pen but if it had those changes id love it