The Astatic AST878DM Is a omni directional ceramic
desk mic offering a rugged cycloac resin housing for
industrial & commercial applications.

• Push to talk and lock to talk buttons
• Five conductor shielded standard Astatic color coded cable
  
• The volume can be adjusted with a potentiometer located under the bottom of the mic.
  
• Mic is wired 4pin Cobra/Uniden
  
  SPECIFICATIONS:
  
• Transistorized Ceramic
  
• Output Level: -44dB Below 1 volt per microbar at 1 khz into 1 megohm load
  
• Output Adjustment: Approx. 40db range
  
• Impedance: 5000 Ohms Max., recommended load of 100 ohms and up
  
• Polar Pattern: Omni Directional
  
• Cable: 2 foot coiled 6 conductor including shield
  
• Weight: 19 1/2 ounces
  
• Power: 9v battery or regulated power supply
  
• Requires 9v battery (not included)