Spec.&Feature: 
  -- Aviation style connector earphone.
  -- Detachable ear bone vibration microphone.
  -- Exchangeable aviation power chassis design to make more chioce.
  -- Background noise cancelling.
  -- Two PTT design to make it use widely and conveniently.
  -- The motorcycle style PTT button is compatible to use on motorcycle.
  -- Big square shape PTT with 360 degress rotatable clip on the back side.
  -- The Free ear holder make you wearing comfortable.
  -- Fit many types of radios /Aviation plug.
Compatible with: 
  -- Through customized earphone interface, so that can be applied to all two way radio models.