The BLX14/CVL Lavalier Wireless System is part of the BLX wireless systems family. Shure BLX Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it’s the most accessible way to own the stage. Includes BLX4 wireless receiver, BLX1 bodypack transmitter, CVL lavalier microphone, power supply, lavalier clip, windscreens, and user guide.For professional presentations requiring a microphone that is heard but not seen, the Centraverse CVL Lavalier Condenser Microphone offers a compact clip-on design and simple, no-nonsense setup. The unidirectional cardioid polar pattern rejects unwanted sound for superior audio quality and vocal reproduction. Precision-engineered for years of use.- Includes BLX4 wireless receiver, BLX1 body pack transmitter, CVL Lavalier microphone, power supply, Lavalier clip, windscreens, and user guide.- Power and battery status LED- Adjustable gain control- Quick & easy frequency matching- 300 feet (91 m) operating range (line of sight)