The Shure SM58® unidirectional (cardioid) dynamic vocal microphone is designed for professional vocal use in live performance, sound reinforcement, and studio recording. It has a tailored vocal response for a sound which is a world standard for singing or speech. A highly effective, built-in spherical filter minimizes wind and breath "pop" noise. A cardioid pickup pattern isolates the main sound source while minimizing unwanted background noise.

Rugged construction, a proven shock-mount system, and a steel mesh grille ensure that even with rough handling, the SM58 will perform consistently, outdoors or indoors.

Features:

• 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

Specs:

• Type: Dynamic (moving coil)
• Frequency Response: 50 to 15,000 Hz 
• Polar Pattern: Unidirectional (cardioid), rotationally symmetrical about microphone axis, uniform with frequency
• Sensitivity (at 1,000 Hz Open Circuit Voltage)
  -54.5 dBV/Pa (1.85 mV)
  1 Pa = 94 dB SPL 
• Impedance: Rated impedance is 150 ohms (300 ohms actual) for connection to microphone inputs rated low impedance 
• Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 
• Connector: Three-pin professional audio connector (male XLR type) 
• Case: Dark gray, enamel-painted, die cast metal; matte-finished, silver, spherical steel mesh grille 
• Overall Dimensions: See User Guide 
• Net Weight: 298 grams (10.5 oz)