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: 3kΩ 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: 6.5gm Dimensions: 65mmH x 140mmW x 200mm