Sennheiser EW 100 G4-ME2 Wireless Omni Lavalier Microphone System (A: 516 to 558 MHz)

For Presenters and Performers
ME 2-II Omnidirectional Lav Mic
Lightweight Bodypack Transmitter
True-Diversity Rackmount Receiver
1680 Auto-Scan Frequencies
8-Hr AA Batteries
Expandable to 12 Mic Channels/330′ Range