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 legendary vocal response for singing or speech. 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. An industry standard for live performance, sound reinforcement, and studio recording. Click to enlarge. View frequency response. Click to enlarge. View polar patterns. Click to enlarge. The Standard for Dynamic Vocal Mics You’ll find multiple SM58s in most any studio or live music venue–no doubt you’ve heard of them. The SM58’s frequency response is tailored for vocals, with brightened midrange and bass rolloff. The uniform cardioid pickup pattern isolates the main sound source and minimizes background noise, which is ideal for vocals, especially in live situations where background noise is substantial. The microphone’s pneumatic shock-mount system cuts down handling noise, making it a great choice for handheld vocals, and the built-in wind/pop filter helps keep things in check. The dark gray, enamel-painted, die-cast metal case has legendary looks and–paired with the mesh grille–legendary toughness. SM58A Specifications Type: Dynamic moving coil Frequency Response: 50 to 15000 Hz Polar Pattern: Unidirectional cardioid , rotationally symmetrical about microphone axis, uniform with frequency Sensitivity at 1000 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 Net Weight: 298 grams 10.5 oz What’s in the Box Shure SM58 Microphone, Stand Adapter