Production Information
| Output Sound Pressure Levels: 114dB and 94dB re 20uPa under reference Conditions | 
| Output Frequency: 1000Hz ±2% | 
| Total Harmonic Distortion: < 4% | 
| Reference Condition: Temperature 23℃(73℉) Static press 103hpa Relative humidity 50% | 
| Accuracy of sound pressure level: Understated reference environment conditions ±0.5dB | 
| Battery test: Operate: Green LED indicator Low battery: Red LED indicator | 
| Battery: 9V battery | 
| Dimensions: 113x63x44 mm | 
| Weight: Approx.170g |