The Heil Sound PR-40 is a new-breed dynamic microphone boasting an innovative design along with top-shelf components to deliver a sound that rivals condenser microphones but without that all-too-common background noise and need for external enhancements.Featuring a large aluminum diaphragm, neodymium magnet structure, a cardioid polar pattern to keep extraneous noise at bay and a double-layered screen to protect against breath blasts, the PR-40 offers a very wide frequency response and clear uncolored sound with virtually no distortion. Ideal for kick drums, bass amps, vocals, and broadcast voice-overs, it comes with an all-metal SM-3 stand adaptor, a storage box and cleaning cloth.Heil Sound PR-40 Features:Large 1.5 inch aluminum diaphragmWide frequency responseEnd fire Cardioid patternIndustry-leading -40 dB of rear rejectionLow distortionLow handling noiseNatural articulationRE27POP pop filter optionHeil Sound PR-40 Specifications:Generating Element: Dynamic with Neodymium magnet structureBody: Matte Steel body, zinc die cast bottom ringFrequency Response: 28 Hz to 18 kHzImpedance: 600 ohms balancedConnections: Pin 1 Shield ground, Pin 2 +, Pin 3 -Output Level: -53dB @ 1 kHzPolar Pattern: End fire, Cardioid, uniform front to back discriminationDiaphragm: Low-mass quilted aluminumFinish: ChromeNet Weight: 15 oz.