The Sennheiser EK 300 IEM G3 bodypack wireless receiver gives you ultra-reliable reception and impressive features for great-sounding, dependable in-ear monitoring performance. The EK 300 IEM G3 includes a bright backlit display with an easy-to-navigate menu, a switchable Hi Boost function, a built-in limiter, and even the capability to use the headphone cable as a second antenna and eliminate blackouts. Automatic frequency scan, wireless sync with the transmitter, a quality HDX compander, and an auto-lock function are also included on the Sennheiser EK 300 IEM G3.