The main features? Specifically designed for vocals frequency response, sound intermediate frequency area with bass frequencies and bright and attenuation can be adequately controlled proximity effect? ??Balanced super heart-shaped pattern that can provide high gain before feedback, and effectively suppress off-axis sound ? neodymium magnets ensure high output signal to noise ratio, hardened steel mesh grille that resists wear and damage? advanced pneumatic shock absorption system to minimize mechanical noise and vibration transmitted? affected by load impedance changes little ? Legendary Shure quality and reliability Specifications Type Dynamic (moving coil) Frequency Response 50 to 16,000 Hz Polar Pattern Supercardioid, rotationally symmetrical about microphone axis, uniform with frequency output level (1,000 Hz) Open circuit voltage: - When 51.5 dBV / Pa * (2.6 mV) * 1 Pa = 94 dB SPL Rated impedance connected to the lower impedance microphone inputs, rated impedance of 150 ohms (290 ohms) Positive pressure on diaphragm phase It produces positive voltage (with respect to pin 3) Case Silver blue enamel die cast metal with hardened, matte-finished steel mesh grille spherical adjustable stand microphone stand adapter plug on pin 2, unbreakable , adjustable through 180 degrees with standard 5/8 "-27 thread, black finish Dimensions See User Guide Net Weight 278 grams (9.92 ounces)