Ideal for home studio and live applications, the low-profile AT2021 offers an extended frequency response, high maximum SPL and wide dynamic range. The microphone is outstanding for acoustic guitar, overheads, piano and group vocals. Its low-mass element offers a superb transient response.Features Condenser design for studio-quality vocal and instrument applications Excels in high-SPL applications Extended response for smooth, natural sonic characteristics Low-mass element for superb transient response 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 Specifications ELEMENT: Fixed-charge back plate, permanently polarized condenser POLAR PATTERN: Cardioid FREQUENCY RESPONSE: 30-20,000 Hz OPEN CIRCUIT SENSITIVITY: -39 dB (11.2 mV) re 1V at 1 Pa IMPEDANCE: 250 ohms MAXIMUM INPUT SOUND LEVEL: 145 dB SPL, 1 kHz at 1% T.H.D. NOISE: 19 dB SPL DYNAMIC RANGE (typical): 126 dB, 1 kHz at Max SPL SIGNAL-TO-NOISE RATIO: 75 dB, 1 kHz at 1 Pa PHANTOM POWER REQUIREMENTS: 48V DC, 2 mA typical OUTPUT CONNECTOR: Integral 3-pin XLRM-type ACCESSORIES FURNISHED: Stand clamp; soft protective pouch DIMENSIONS: 101.5 mm (4.00") long, 21.0 mm (0.83") maximum body diameter WEIGHT: 83 g (2.9 oz)