Evolution Speaker Microphone

OTTO’s Evolution is a sealed speaker microphone with high low volume control.



  • Versatile and reliable speaker microphone for demanding environments
  • Sealed housing meets MIL-STD-810 including 40 mph blowing rain
  • Adjustable high/low volume control
  • 2.5mm accessory jack for use with earphone kit for loud environments or discreet communications
  • Built-in debris screen
  • Clothing clip assembly: 360° rotation with positive detent stops every 45°
  • Optional emergency button and antenna connect

Recommended Markets

  • Construction
  • Manufacturing
  • Public Safety
  • Federal Agencies
  • Military