Moving-coil dynamic unidirectional element; Durable zinc alloy metal construction; Steel mesh grille; On/off broadcasting switch; Freq resp: 50Hz-15kHz; Imp: 600ohm +/-30%; Sensitivity: -54dB +/-3dB; Dim: 6.7H x 1.7W x .3D; 6.5ft x 1/4 microphone cable;