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Specifications:
Speaker directly: 8MM±0.2MM*4
Speaker impedance: 32Ωz±15%
Sensitivity: 98dBat 1kHZ 1mw(0.179V)
Distortion: ≤3%Db at 1KHz
Left and right balance: ±3Db at 1kHz
Microphone size: 4MM±0.1MMⅹ1.5±0.1(H)MM
Sensitivity: -40±3DB
Microphone impedance: 2.2KΩ±10%
Directionality: omnidirectional
Wire length: ≥1.2M
Plug: 3.5 curved bow gold-plated four connections