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.System Includes:BLX1 Up to 14 hours of continuous use with 2 AA batteries. 300 ft (100 m) transmission radius.BLX4 Single channel wireless receiver with microprocessor-controlled internal antenna diversity.CVL NEW Centraverse Condenser lavalier microphone for use with Shure bodypack Wireless Systems.The durable BLX1 features a lightweight, ergonomic design and adjustable gain control. For use with BLX Wireless Systems.FeaturesFrequency Range: 614MHz-638MHzQuick and easy receiver frequency matchingTQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cablesEasily accessible On / Off switchThe durable BLX4 features simple setup, intuitive controls, and microprocessor-controlled internal antenna diversity. One-touch QuickScan frequency selection quickly locates the best open frequency in case of interference. For use with BLX Wireless Systems.XLR and ¼ output connectorsTwo-color audio status indicator LED - Green: Normal audio levels, Red: Excessive audio levels (overload / clipping)The NEW CVL Centraverse Condenser Lavalier MicrophoneMiniature clip-on lavalier microphone for low visibilityPermanently charged electret condenser element for clear vocal reproductionUnidirectional (cardioid) polar pattern rejects unwanted noise for improved sound qualityIncluded tie clip allows for hands-free use, perfect for presentersIncluded windscreen reduces plosives, wind and breath soundsTailored frequency response optimized for speaking and presentations TA4F (TQG) connector seamlessly integrates with Shure wireless bodypack systemsLegendary Shure precision engineering for durability and performance