The Shure RPW112 is a dynamic replacement capsule designed to restore or upgrade any Shure wireless handheld that uses the SM58-style head. It drops directly onto transmitters from the SLX, ULX, ULX‑D (non‑KSM capsules), UHF, UHF‑R, UC, SC, LX, and several other Shure series, making it a universal fix for worn or damaged SM58 wireless elements. The RPW112 includes the full SM58 capsule, housing, and grill, delivering the familiar cardioid pattern and vocal presence the SM58 is known for.

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