Shure BLX14R/W93. Lavalier Wireless System - Includes WL93 lavalier microphone, BLX1 bodypack transmitter, BLX4R rack mount receiver, single and dual rackmount kit, two 1/4 wave antennas, zipper bag, power supply, 2 AA batteries, and user guide. (SHR-BLX14RW93K14)