BLX288/SM58 - Wireless Dual Vocal System with two SM58 - Shure USA
Shure SM58 LC – Thomann United States
Amazon.com: Shure AD2/SM58-G57 Transmisor de mano inalámbrico digital Axient con cabezal de micrófono SM58 (G57: 470 a 616 MHz) : Instrumentos Musicales