タイトルまたは説明

two way radio earphone
  Separated microphone, PTT , and ear piece for discreet communication
  Friendly to our skin, avoiding discomfort and pain, more concealment
  High-quality acoustic ear tube provides clear audio to prevent background noise
  Highly compact microphone, easy to operate and conceal
  Used in some sports events such as motorcycle, bicycle, hiking, hunting, and mountain climbing
  Available for Motorola, Kenwood, Icom, Yaesu/Vertex, and Maxon

  two way radio earphone
 Specifications:
  Speaker
  Impedance: **0Ω±*5%
  Maximum power: *0mW
  Sound pressure level: **0±2dB
  Dimension: Φ*3mm
  Microphone:
  Material: PU and environmental
  Sensitivity: **4dB±2dB
  Operating voltage: 1 to *0V
  Impedance: 2.2kΩ
  Dimension: Φ6mm