The EK 300 IEM G3 from Sennheiser is a compact and rugged beltpack audio receiver. Ideal for monitoring applications, the receiver has 1680 tunable UHF frequencies for interference-free operation. It also has a pilot tone squelch feature for eliminating interference when the transmitter is turned off.

IFB Sennheiser EK 300 IEM G3 Wireless Bodypack