47
Overall harmonic
distortion:
≤ 5% @ 1600Hz
Frequency range:
100~6000 Hz
Input noise:
≤ 30 dB
Voltage:
1.4 V
Power supply:
≤ 5 mA
Operating conditions:
Temperature: -10°C ~ +40°C
Relative humidity: 30% ~ 75%
Atmospheric pressure: 700 ~ 1600 hPa
Storage and
transportation conditions
Temperature: -10°C ~ +55°C
Relative humidity: 10% ~ 90%
Atmospheric pressure: 500 ~ 1600 hPa
The serial number is located on the device or in the battery compartment.