WIRELESS FREQUENCY BAND SELECTION: Before purchasing, please ensure that the wireless frequency band you select works in your area (refer to Shure website for details > search Shure Wireless Frequency Finder). | COMPONENT ONLY: For this BLX1 wireless bodypack transmitter to work, please make sure it matches the frequency band (style) on your Shure BLX series receiver (BLX4, BLX4R or BLX88). You'll also need an instrument cable (e.g. Shure WA302) or wireless microphone (e.g. SM31FH) that terminates to a TQG TA4F 4-pin mini-connector to connect to the BLX1 bodypack transmitter. | WHAT'S IN THE BOX? BLX1 wireless bodypack transmitter, 2x AA batteries, and user guide. Free 2-YEAR WARRANTY included. | HOW IT WORKS: BLX Wireless Systems provide professional-quality sound with simple setup and an intuitive interface. Choose from a wide range of transmitter form factors (handheld, bodypack, headworn, lavalier, instrument clip-on) and use it with single- and dual-channel, as well as rack-mounted receivers. | WHY IT'S BETTER: PROFESSIONAL WIRELESS MADE EASY. The system is designed to set up quickly, manage simply, and provide legendary Shure audio quality. VERSATILITY INCLUDED. An impressive variety of Shure microphones are available in BLX systems, so you can find the sound that works for you. EXTEND THE STAGE. The system operates up to a range of 300 feet, so you can take the show into the crowd without interruption. | QUALITY THAT'S IN THE DETAILS: System includes choice of Shure microphone, transmitter, and receiver. Choice of receiver type for portability or to install on site or in rack. Transmitters work for up to 14 hours on two AA batteries. Runs up to 12 systems per frequency band.