Audio-Technica AT2021 Cardioid Condenser Microphone Condenser design for studio-quality vocal and instrument applications; ideal for acoustic guitar, overheads, piano and group vocals Excels in high-SPL applications with extended response for smooth, natural sonic characteristics Low-mass element for superb transient response Corrosion-resistant contacts from gold-plated XLRM-type connector Rugged design and construction for reliable performance Cardioid polar pattern reduces pickup of sounds from the sides and rear, improving isolation of desired sound source