Fire Fighter Telephone Hand Set with Box

• Frequency Range: 300Hz ~ 3400Hz
• Ring Sound: >70dB(A)
• Voice Distortion: less than 10%
• Operating Current: 17mA ~ 31mA
• Plug Diameter: 6mm
• Material & Color: ABS, Red
• Environment Temperature: 0?C ~ 40?C
• Humidity: 45% – 95%, non-condensing
• Weight : About 250g

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