Nombre del producto：Jiahe USB-790MV

Type: head

Horn: φ 40mm KBA internal magnetic type loudspeaker

Frequency response: 20 - 20000Hz

Sound pressure sensitivity: 108dB ± 3dB in 1kHz

Resistance: 32ohm ± 15%

Lead: 2.3 meters long copper enameled wire into the force plug: USB interface

Microphone specifications

Mike: 9.7mm capacitor

Frequency response: 30-16000 Hz

Sound pressure sensitivity: -60db ± 2dB

Sound pressure sensitivity: -60db ± 2dB

Impedance: 2200 ohm ± 15%

Operating voltage: 4.5 V (impedance 2.2K)

A: the whole point of entry to the USB interface plug:: Senior cortical earmuffs earmuffs

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