The Audio Limited DX2 is a battery powered true diversity dual receiver which makes it ideal for documentary or ENG work. It is equipped with two antennae, each connected to its own receiver inside the unit. The DX2@i9udatmXWU2ZoKU automatically switches between the two receivers ensuring the strongest signal is always captured. That means you will experience no break up of sound (drop-outs) even in built-up areas where signals bouncing off walls and metal objects (reflections) can cause cancellations.