Shure BLX188/CVL Combo S8, Dual UHF Wireless System, PG Presenter combo, 2 x BLX1 Pocket receiver, 2 x CVL Lavalier microphone, Can operate up to 3 systems simultaneously, Pilot tone, Microprocessor-controlled antenna diversity, Quick scan feature to find free frequencies @+*Condenser microphone capsule CVL:*@+@+, Frequency response: 50 - 20,000 Hz, Cardioid, Plastic receiver, Integrated antennas, XLR and jack outputs, Audio status LEDs, Frequency range: S8 (823-832 MHz)