Product Description
Max Sound Output: 130 ± 5 dB
Max Sound Gain: ≥50 dB
Harmonic Wave Distortion: ≤5‰
Frequency Range: 300~4000 hz
Input Noise: ≤30 dB
Battery: AG13 Button battery
Max Working Hours with Standard Battery: 70 h
Working Voltage: D.C. 1.5V
Working Current: ≤4 mA
Measurement: 5.3×4.4×1.0 cm
Net Weight: 9 g (without Battery)
Special Function Key: None
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