Transducer type: back electret condenser Diaphragm Diameter:5 inch Polar pattern: omnidirectional Frequency response: 20-20000 Hz Maximum SPL for 1% THD:130 Self Noise:20 dB -A Impedance: 1500 ohm Reccommended Load Impedance:2000 ohm Power Requirement : 1,5-10 volt dc Current drain: 20 mAmp Connectors: mini jack 3,5 Colour: beige Wei...