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According to IEC 60118-7-2005, ANSI Standard S322-2014
Maximum SSPL90: 107 dB
HFA-SSPL90: 106 dB
HFA-full-on Gain: 22 dB
Reference Test Gain: 22 dB
Frequency Range: 200 Hz to 5000 Hz
Equivalent Input Noise: 18 dB
Total Harmonic Distortion: 500Hz: 1%, 800Hz: 1%, 1600Hz: 1%
Battery Type, Current: PR41(312), 0.95mA
Dimensions: 1.35 × 2.49 × 1.03 cm
Weight: 1.6 g (excluding battery)
Contents: Main unit, battery, case, cleaning brush.
