Product Features Size: J6 * Automatic Transmitter Setup * Automatic Frequency Selection * 90 Selectable Frequencies Across 18 MHz Bandwidth * Subminiature Lavalier Design * Small, Inconspicuous Mounting Hardware Product Dimensions: 17.5 x 12.7 x 4.2 inches ; 4.7 pounds Includes WL93 Omnidirectional Micro-Lavalier Condenser Microphone, PGX1 Bodypack Transmitter, and PGX4 Diversity Receiver. Reliable system for spoken word applications