Audio Speaker size 28mm Ø
Speaker sensitivity 115dB @1mW-1kHz
Speaker max input power 30mW
Speaker frequency range 20Hz - 20 000Hz
Speaker bandwidth – Music mode 20Hz - 20 000Hz
Speaker bandwidth – Speak mode 100Hz - 12000Hz
Microphone type 1 Analog MEME and 1 Analog ECM
Microphone sensitivity -38BV/Pa / -33dBV/Pa