Shure SLX4-P4 702-726 MHz Wireless Microphone Receiver. P/N: SLX4-P4 702-726 MHz. Shure SLX4-P4. The Shure SLX4 is a wireless diversity receiver. A strong link for wireless live audio. This model operates within the P4 frequency band, from 702 to 726 MHz.
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