The Shure BLX1288E/SM58 Dual Wireless System is an industry-standard, highly versatile cardioid dynamic vocal microphone, tailored to deliver warm and clear vocal reproduction combines simple setup and an intuitive interface for performance you can trust.

Shure BLX® Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it’s the most accessible way to own the stage.

The SM58 microphones capsules are Industry-standard professional microphones for daily touring, club and studio performances with analogue handheld transmitter. Integrated microphone capsule design

Attached to the capsules are the BLX2 handheld transmitters. These features a power and battery status LED, Adjustable gain control, Quick and easy frequency matching, up to 14 hours of continuous use and 100 m of operating range

The BLX88 receiver cancompatible with up to 12 systems (region dependent) and features microprocessor-controlled internal antenna diversity. One touch QuickScan locates the best open Frequency.

The WA302 Instrument cable connects the BLX1 transmitter to a guitar or other instrument.

The BLX 1 Bodypack transmitter offers up to 14 hours of continuous use with 2 AA batteries. It has a 300 ft (100 m) transmission radius.

The main features of the Shure BLX1288E/SM58 Dual Wireless System include:

SM58 Microphone capsule (x2):

Frequency response tailored for vocals, with brightened midrange and bass rolloff
Uniform cardioid pickup pattern isolates the main sound source and minimizes background noise
Pneumatic shock-mount system cuts down handling noise
Effective, built-in spherical wind and pop filter
Supplied with break-resistant stand adapter which rotates 180 degrees
Legendary Shure quality, ruggedness and reliability
Cardioid (unidirectional) dynamic 
Frequency response: 50 to 15,000 Hz
BLX2 Handheld transmitter:

Power and battery status LED
Adjustable gain control
Quick and easy frequency matching
AA batteries (included) provide up to 14 hours of continuous use
100 m (300 ft.) operating range (line of sight)
BLX88 receiver:

Up to 12 compatible systems (region dependent)
Microprocessor-controlled internal antenna diversity
One touch QuickScan locates the best open frequency
¼" and XLR audio outputs
Two color audio status indicator LED
BLX 1 bodypack transmitter:

Quick and easy receiver frequency matching
TQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cables
Easily accessible On / Off switch
WA302 Cable:

2.5 foot (0.75 m)
1/4-inch plug and 4-pin mini connector (TA4F) (supplied with instrument systems)

Warranty 2 years.