The Shure ADX2FD/SM58 Axient Digital handheld transmitter pairs Shure’s flagship Axient Digital wireless platform with the iconic SM58 dynamic cardioid capsule, delivering trusted, consistent vocal performance with cutting-edge digital wireless reliability. Operating in the K55 frequency band (606–694 MHz), this frequency-diversity handheld provides outstanding RF stability, wide tuning bandwidth and ultra-low latency for touring, theatre, broadcast and professional live sound applications. Featuring a rugged all-metal construction, it supports ShowLink® remote control, secure encrypted digital audio and advanced power management with SB920A rechargeable battery compatibility. A premium wireless handheld for those who want the legendary SM58 sound with the control and performance of Axient Digital.