High-quality loudspeaker and microphone units
Provides clear audio communications
Lightness
friendly to hold

High-quality loudspeaker and microphone units
  Provides clear audio communications
  Lightness, friendly to hold

 Microphone:
  Dimensions: ø3.5mm
  Sensitivity: -56dB ±2dB
  Directivity: vibration
  Frequency response: 100Hz to 160kHz
  Impedance: 2.2K ohms
  Working voltage: 1 to 10V
  Speaker:
  Dimensions: ø13mm
  Rated impedance: 32 ohms ±15%
  Frequency range: 420Hz to 20kHz
  Sensitivity: 102±2dB
  Rated power: 20mW
  Maximum power: 30mW