Sennheiser EM 100 G4-A1

True diversity half-rack receiver in a full-metal housing with intuitive LCD display for full control with Evolution wireless G4 100 Series systems. Easy and flexible wireless synchronization between transmitter and receiver via infrared. Fast frequency allocation for up to 12 receivers via new linking functionality. Up to 20 compatible channels. Transmission Range: 100 m. High RF output power (up to 30 mW) depending on country regulations. Package includes: EM 100 G4 true diversity receiver, 2 rod antennas, power supply, RJ 10 cable, GA 3 rackmount set, manual. Dimensions: 190 x 212 x 43 mm. Weight: 980 g. Frequency: 470 - 516 MHz