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Shure BLX2 SM58

The BLX2/SM58 is the handheld transmitter half of Shure's BLX wireless system, putting the legendary SM58 vocal capsule on a cordless body. The SM58's cardioid dynamic element delivers the midrange presence and rugged feedback control that has defined live vocals for decades, now free of a cable. A switchable -10 dB gain attenuation setting keeps hot sources from overloading the input.

It pairs with any matching-band BLX4 or BLX4R receiver and runs on two AA batteries for up to 14 hours of use. QuickScan on the receiver locks the pair to a clean channel, and the transmitter reaches up to 300 ft line of sight in the clear.

TypeHandheld wireless transmitter with SM58 capsule
Microphone ElementSM58 dynamic, cardioid
Gain Attenuation-10 dB switchable
Battery2x AA, up to 14 hours
Working Range300 ft (91 m) line of sight
Audio Frequency Response50-15,000 Hz (system, mic dependent)
Total Harmonic Distortion0.5% typical