The 565SD Classic Unisphere® Vocal Microphone is a dual-impedance, unidirectional dynamic microphone famous for its spot on the Woodstock stage.

It features highly effective wind and "pop" filter for vocals and a durable, wire-mesh front grille. Shipped connected for low-impedance operation, the 565SD provides excellent vocal or speech reproduction onstage, and can also be used with public address systems. 

Features:

Versatile, high-quality microphone with sound characteristics similar to the SM58®
Selectable dual-impedance operation
Silent magnetic reed on/off switch with lock-on option

Specifications:

Type Dynamic
Frequency Response 50 to 15,000 Hz
Polar Pattern Cardioid (unidirectional)--uniform with frequency, symmetrical about axis
lmpedance Dual. Microphone rating impedance is 150 ohms (250 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms and "High" for connection to high-impedance microphone inputs. Wired for low impedance as supplied.
Output Level LOW @ 1,000 Hz: Open Circuit Voltage* -58.0 dB (1.3 mV); HIGH @ 1,000 Hz: Open Circuit Voltage* -35.0 dB (17.6 mV) *0 dB = 1 volt per Pascal (1 Pa = 94 dB SPL)

Warranty: 2 years