Dynamic Vocal/Presentation Microphone 3-Pack. The R21 Dynamic Vocal/Presentation Microphone 3-Pack features three R21 mics, each with a tight cardioid pickup pattern for maximum gain before feedback, a dual stage windscreen, heavy gauge mesh and anti-dent ring for enhanced protection, as well as gold-plated XLR pins that ensure positive connetivity. Features include:; High output dynamic element; Unidirectional cardioid polar pattern for maximum gain before feedback; Withstands high SPLs; Dual stage windscreen; Excellent for live performance and recording; Rugged road-proof design; Gold-plated XLR connector; Mic clip and carry case included