Power Min 2V - Max 5V through MiCon wireless adaptors P48 through MiCon XLR adaptor Acoustic Principle Permanently polarised condenser Directional Pattern Omni-directional Frequency range 60Hz - 18kHz Output impedance 3kO Typical Signal noise ratio 69dB Equivalent noise 25dBA SPL (per IEC651) Maximum SPL 110dB (clipping SPL) Maximum output voltage 189mV (Calc. From max SPL peak before clip) Sensitivity -33.5dB re 1 V/Pa (21mV @ 94dB SPL) ± 3dB @ 1kHz Weight 1gm Dimensions 4.5mmH x 4.5mmW x 12mmD