Shure BLX188/CVL-H10 Dual Lavalier Wireless System Frequency H10FEATURES The BLX188 CVL Dual Channel Lavalier Wireless System is part of the Dual Channel Lavalier 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, its the most accessible way to own the stage. Includes BLX88 dual channel receiver, 2 BLX1 bodypack