The durable BLX1 features a lightweight, ergonomic design and adjustable gain control. For use with BLX Wireless Systems. Quick and easy receiver frequency matching TQG connection for use with Shure lavalier, headset, earset, and instrument microphones, and guitar cables Easily accessible On/Off switch Battery Life: Up to 14 hours Typical Operating Distance: 300 ft (100 m) transmission radius Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation. Get your Shure BLX1 Bodypack Transmitter today at the guaranteed lowest price from Sam Ash with our 45-day return and 60-day price protection policy. FCC Consumer Alert (U.S.) Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC s wireless microphone website at . ??Warning: Cancer and Reproductive Harm-