The op has three choices with the V2
GL300K is what he has now that is Android based.
GL300L is a no screen controller that will work with a number of different devices. iOS and Android (phones or tablets)
Last is the Smart Controller which is also Android based, but works fine with his aircraft.
Based on his comment, he needs the GL300L.
There are several on eBay currently that look presentable. One just under 375.00 shipped.