Shure ULXD4-V50 Single-Channel VHF Digital Wireless Receiver 174 to 216 MHz e-ii The U 87 Ai is

The U 87 Ai is addressed from the front

The detachable metal leg base screws into the peg so that the entire unit can be stored in the bell of the instrument

keyboard or any other instrument

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Shure ULXD4-V50 Single-Channel VHF Digital Wireless Receiver 174 to 216 MHz e-ii The U 87 Ai isDigital quad wireless receiver offers an intelligent four channel option for use in any professional sound reinforcement application. Features include Digital Predictive Switching Diversity, 64 MHz tuning range, and AES 256 encryption for security. The Shure ULXD4Q Quad Channel Digital Wireless Receiver offers four channels of uncompromising audio quality, RF signal stability, and advanced setup features in a space efficient single rack unit. Rugged