Used U4D-UA Dual Channel Reciever by Shure - Item# 30034
Shure U4D System Package – Gearwise – AV & Stage Equipment
Shure U4D SET MB all racked, 4 U2 hand mic and 4 body, all from 823-830 Mhz | 1700 EUR - Gebrauchte-Veranstaltungstechnik.de - Der Marktplatz für gebrauchte Veranstaltungstechnik
Shure U4D-UB UHF 692-716 MHz Frequency Range Dual Wireless Microphone Receiver | eBay
Shure UHF U4D-M4 Wireless Dual Channel, Freq 662 - 692 MHz Systems &2 Hand Held Beta 87A Microphones | Reverb