Wireless system with headset microphone, bodypack transmitter and diversity receiver. Best choice for your business, top of the class in education. New frequency ranges allow to operate multi-channel setups with dozens of channels while securing reliable operation. The powerful professional SL-HEADMIC1 is the pro’s choice for lively lectures and speeches. Its high speech intelligibility makes the headset microphone – besides its good look – absolutely reliable. Easy to use, fast setup time. Integrated network port allows control, monitoring and setup via Sennheiser Control Cockpit and WSM Software. Up to 32 channels. Increased RF output power (10/30/50 mW). Transmission Range: 100 meters. Compatible with wireless speaker system LSP 500 PRO. Package includes: EM 300-500 G4 true diversity receiver, SK 300 G4, SL Headmic 1, GA 3 rackmount set, power supply, 2 AA batteries, 2 rod antennas, manual. Dimensions: 202 x 212 x 43 mm. Weight: 980 g. Frequency: 470 - 558 MHz