Specifications Transducer:- Electret Condenser Frequency Response:- 50Hz to 20KHz Dynamic Range:- 117dB Signal/Noise:- 75dB Sensitivity:- -40dB (±3dB, re 1V/Pa at 1 KHz) Max. Input SPL:- 135dB SPL (at 1 KHz) Output Impedance:- 2.2KΩ Audio Cable:- 6m/ 19.7ft Connector:- 3.5mm (1/8") 4-pole Gold Plug Battery Type:- CR1220 Battery Life:- 800h Dimensions:- 17×53mm