Desktop microphone with three buttons, three LEDs, USB connection and jack for external loudspeaker


  • Connection for external Loudspeaker
  • Dynamic unidirectional high noise canceling gooseneck microphone
  • Headset port on the front
  • Port for an external PTT button
  • Device recognized as external sound card by the computer
  • Buttons and LEDs recognized as HID (Human Interface Device)
  • Compatible with Microsoft® Windows® Vista, Windows® 7 and Windows® 8


  • Black matte housing (Art.-No.:  6402-008-001-41)

Application range

  • PC-based control centers in fixed indoor applications


  • Loudspeaker KL1 8 Ω (Art.-No.: 6601-007-000-51)
  • Loudspeaker KL3 8 Ω (Art.-No.: 6604-004-000-51)
  • External PTT button
  • Various headsets

Scope of delivery

  • Desktop microphone with USB cable
  • Printed Manual


Microphone headBrass, sand blasted chrome (matte)
Gooseneck Metal, matte silver coated
HousingMetal, matte silver coated
DimensionsMic. head: Length 80 mm, Ø 24 mm
Gooseneck: Length 200 mm, Ø 11 mm  
Housing: Heigth 32 mm, Width 105 mm, Depth 160 mm
Weight800 g (28.2 oz)
Connection2 m cable with USB-A plug
Operating and display elements3 Buttons, green, black, orange; display elements: Volume control; 3 LEDs, green, blue, red
Operating voltage5 V to 14 V (DC)
Storage Temp.-30 °C to +70 °C (-22 °F to +158 °F)
Operation Temp.-10 °C to +55 °C (-14 °F to +131 °F)
Frequency range150 Hz to 12 kHz at -10 dB
Sensitivity1 mV/Pa (-60 dBV/Pa ± 3 dB)
Impedance200 Ω ± 20 % at 1 kHz
DirectivityCardioid (at 1 kHz; 180° -20 dB
Connection for loudspeaker
Connection2.5 mm jack for external loudspeaker
Impedance>= 8 Ω