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:WA302 Cable, Instrument, 2.5 foot (.75 m), 4 Pin Mini Connector (TA4F) to ¼ inch Connector.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.The WA302 Instrument cable connects the BLX1 body-pack trasmitter to a guitar or other instrument. Features a 2.5 foot (0.75 m), length with ¼ inch plug and 4-pin mini connector (TA4F) (supplied with instrument systems).FeaturesThe durable BLX1 features a lightweight, ergonomic design and adjustable gain control.Frequency 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.XLR and ¼ output connectorsTwo-color audio status indicator LED - Green: Normal audio levels, Red: Excessive audio levels (overload / clipping)