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    Noise reduction of professional earphone

    Prezzo unitario  per 

    Microphone: 5.7mm * 5, 2mm ± 0.5mm
    Voltage: 3.7V

    Working current: 300mah-1000ma
    Environmental noise: ≤ 60dB (a)
    Receiver impedance: 150 ohm
    Microphone sensitivity: 36 ± 3dB
    Computer USB interface
    Earphone cable: 1.8m ± 0.2m (curved rope)
    Weight of single bare machine: 0.14kg
    Single gross weight: 0.185kg
    Single package size: 17.4cm * 14.5cm * 7cm