Technical Data Output:Air conduction, Free field Frequency:AC 125Hz-10-80HL 250 Hz-10-100HL 500-750Hz-10-120HL 1000-3000Hz-10-120HL 4000Hz -10-120HL 6000Hz -10-120HL 8000Hz -10-120HL Masking: Pure tone&with contralateral white noise test Tests: AC test with noise test Tone: Continuous pure tone,pulse tone Precision: Sound pressure:±1dB, Randorn error of Frequency:≤1% Distortion:Air conduction:≤2.5%
Specification Power Supply:100-250V AC,50-60Hz Dimensions:L450xW440xH135 mm Weight:3.8kgs Microphone:Built-in