Shure SH-90U Professional Dynamic Microphone. Vocal & Instruments Pro-Caliber Sound Ideal for Rehearsals and Gigs
 
FEATURES
Tailored frequency response provides vocal intelligibility and crispness
Neodymium magnet for high signal-to-noise ratio
Shock mount reduces handling noise
Cardioid (unidirectional) pickup pattern suppresses feedback
Locking On/Off switch
 
SPECIFICATIONS
Type: Dynamic
Frequency Response: 80 to 14.000Hz
Pickup (Polar) Pattern: 
Cardioid (Unidirectional): 
Impedance: Low, rated 150Ω (actual 180Ω)
Output level (at 1kHz): Open Circuit Voltage -76.0dB (0.15mV) *
*0dB=1V/μ, bar
Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Connector: Three-pin professional audio connector (male XLR)
Switch: Built-in locking ON/OFF switch, with lock plate. To lock switch On, loosen screw, push lock plate forward, then tighten screw.
Weight:255g (9oz)