Shure BLX288/SM58 Wireless Dual Vocal System with two SM58 (K14: 614-638MHZ)

2 Years Local Warranty.

Key Features

  • For Two Presenters or Performers
  • 2 x SM58 Cardioid Mic/Transmitters
  • Dual-Channel Tabletop Receiver
  • 123 Auto-Scan Frequencies
  • Internal Antenna Diversity
  • 14-Hour AA Batteries
  • Expandable to 12 Mic Channels/300' Range


The Shure BLX288/SM58 is a cost-effective wireless handheld microphone system for two presenters, teachers, or lecturers which offers quality sound, simple setup, and dependable performance right out of the box. It includes the compact and lightweight BLX88 dual-channel tabletop receiver with internal antennas, ideal for portable use.

The BLX288/SM58 also includes two handheld transmitters each equipped with the legendary SM58 cardioid dynamic capsule, an industry standard for vocalists and announcers. The receiver features one-touch QuickScan frequency selection to quickly search 123 available frequencies and locate a clean RF channel in case of interference. The system provides up to 14 hours of continuous use with four AA batteries, at a range up to 300'. Up to 12 mic channels can operate simultaneously in each frequency band.

This streamlined system is well suited for live performances and events in small venues, wedding halls, and houses of worship as well as conference, educational, and corporate facilities.


SM58 Mic Capsules Optimized for Vocals and Speech

The SM58 dynamic capsules feature a cardioid polar pattern that minimizes background noise and feedback. The brightened midrange and bass roll-off deliver that sought-after warm and clear vocal reproduction. The built-in spherical wind and pop filter reduces plosives for clean and intelligible speech.


Lightweight Handheld Transmitters

The durable BLX2 handheld transmitters offer a lightweight, ergonomic design and are comfortable to hold. Group- and channel-selection buttons allow for quick and simple frequency matching with the receiver. Other features include an easily accessible on/off button, adjustable gain control, and a black identification cap. The WA621 Color ID Caps kit containing assorted colored caps is available as an optional accessory.


Easy-to-Use Dual-Channel Tabletop Receiver for Quality Audio

The BLX88 receiver employs a microprocessor-controlled internal antenna diversity feature to improve the quality and reliability of your wireless audio. Two LED displays show group and channel settings, while four LED lights indicate when the system is ready for use and the strength of the incoming audio signal. The unit offers two 1/4" and two XLR outputs for connectivity to PA systems and mixing boards.


System Specification

Wireless Transmission: Analog UHF

Number of RF Channels: 123

Included Transmitters: 2 x Handheld

Diversity: Antenna Diversity

RF Frequency Band: K14 614MHz-638MHz

RF Bandwidth: 24 MHz

RF Channel Scanning: Auto-Scan

Max Operating Range: 300' / 91.4 m (Line of Sight)

Max Microphones per Band: 12

Dynamic Range: 100 dBA


Receiver Specification

Form Factor: Tabletop

Antenna: 2 x Internal

Number of Audio Channels: 2

Audio I/O:

  • 2 x XLR 3-Pin Male Balanced Output
  • 2 x 1/4" TS Female Unbalanced Output

Audio Output Level:

  • XLR Outputs: -27 dBV (Mic Level)
  • 1/4" Outputs: -13 dBV (Instrument Level)

Frequency Response: 50 Hz to 15 kHz (Dependent on Mic)


  • XLR Outputs: 200 Ohms
  • 1/4" Outputs: 50 Ohms

Power Requirements: AC/DC Power Adapter

AC/DC Power Adapter: 12 to 15 VDC at 160 mA, Center-Positive (Included)

Display & Indicators

2 x Multi-Segment LED (Channel, Group)

4 x LED (AF Level, Sync)

Housing: ABS

Dimensions: 15.3 x 1.6 x 4.6" / 388 x 40 x 116 mm

Weight: 15.1 oz / 429 g


Transmitter Specification

Form Factor: Handheld

RF Output Power: 10 mW

Audio I/O: None

Muting: Off/On Switch

Auto-Level Control: No

Gain Range: -20 to -10 dB

Sync Method: Manual

Antenna: 1 x Internal (Handheld)

Power Requirements: Battery

Battery Type: 2 x AA (Included)

Approx. Battery Life: 14 Hours (Alkaline)

Display & Indicators

1 x Multi-Segment LED (Channel, Group)

1 x LED (Battery Status, Power)

Housing: ABS

Dimensions: 2.1 x 8.8" / 53 x 224 mm

Weight: 7.7 oz / 218 g (without Batteries)


Microphone Specification

Form Factor: Handheld Capsule

Sound Field: Mono

Capsule: Dynamic

Polar Pattern: Cardioid

Frequency Range: 50 Hz to 15 kHz

Sensitivity: -54.5 dBV/Pa

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