FEATURES Suitable for speaking, teaching, tour guiding and interview recording. Long lasting operation due to low base consumption. ON-OFF switch for operation. Wind shield included to reduce wind noise and banging. SPECIFICATIONS Type: Condenser Microphone Direction: Unidirectional (Cardioid) Impedance: 680 Ω ± 20% Sensitivity: -68 dB ± 3dB (0 dB = 1 V/µ bar, at 1KHz) Frequency response: 100 - 12KHz