Product FeaturesFEATURESHigh quality back electret condenser capsule. a good example of excellent vocal reproduction designSpecial surface treatment process， the texture is smooth， abrasion resistant.The configuration cable. lightweight， soft strect-resistant， has good shielding effect and balanced output function， can effectively reduct the friction between the sound and outerwearSolid metal collar clip，easy to use.convenient and durable SPECIFICATIONPolar pattem: UMUnidirectionalMic diameter: 9.7*5.2mmSensitivity: - 47db��2dbFrequency Range: 20-20KHZOutput Impedance: <680 ohmsOperation Voltage : 1.0V-10V.DCSNR: >58dbWire: 1.2m