The impedance of the internal microphone is 150 ohms.
VPU : Voice Projection Unit : voice amplifier + microphone
Product typeThe voice amplifier is composed of a removable external speaker, as well as an internal microphone also removable.
The voice amplifier is composed of a removable external speaker, as well as an internal microphone also removable.
The impedance of the internal microphone is 150 ohms.
