◆Speaker DIM.: Φ45±0.5mm
◆Speaker Impedance: 8Ω ±15%
◆Speaker Sensitivity: 90dB±3dB
◆Speaker Frequency Respond: 20-20KHz
◆Microphone Size: Φ9.7*6.7mm
◆Microphone Frequency Respond: 20Hz-16KHz
◆Microphone Impedance: 2.2KΩ
◆Microphone Sensitivity: -36dB±2dB