GeneralResonance frequency: 3.9 kHzCapacitance: 9 nFSize: ⌀ 6.0 x 1.49 mmAcoustics in coupler (IEC 60318-4)SPL @ 5 kHz / 9.5 VRMS (13.5 VP ) + 10 VDC: 121 dBTHD @ 5 kHz / 1.5 VRMS (2.1 VP ) + 10 VDC: 0.3% Inquiry