Description
Gasketed diaphragm alters its effective size and frequency response by simply changing pressure
Firm pressure will produce diaphragm-type high frequency performance, sculpted chest piece made from lightweight zinc alloy plated with an attractive satin finish, aluminium binaural in satin finish
Double leaf internal spring fixed at 15 degree angle for greater comfort, reinforced yoke moulded into flexible 22″ plc. “y” tubing






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