Sound level
94dB（0dB=20uPa）
Sound level error
±0.5dB
Frequency
1kHz±2%
Total Harmonic Distortion
≤1%
Power supply
9V laminated cell
Range of operating temperature
0℃~+40℃
Reference humidity
≤80%（40℃）
Dimension of applicable microphone
1/2 inch
Dimension of applicable supported adapter
1/4 inch
Specification
80*50*32mm