Description : Type : Electret Condenser Microphone Directivity : Unidirectional Rated Impedance : 2k ohms, unbalanced Rated Sensitivity : -48 dB (1kHz, OdB = 1 V/Pa) Frequency Response : 100 Hz - 16 kHz Cable Length : 7 m (shield wire 1 x 7/0.16mm, black) Material color : ABS Black Mounting : Clip for Holder Dimensions : 38 x 89.5 x 19mm Weight : 150g Battery : 1pcs of "AA" size Read more at http://www.mudah.my/Tie+Clip+Microphone+TOA+EM+360+AS+-31128701.htm#u2xzP14sHoL5HYDr.99