audio-technica ATM75 Condenser Headworn Microphone

With a pivot-mounted flexible mic boom that descends from either the left or right side, the ATM75 delivers professional-quality vocal pickup with hands-free operation. The belt-mounted power module operates on either battery or phantom power.

• Professional-quality vocal pickup with hands-free operation
• Low-visibility headband provides stable, comfortable fit
• Pivot-mounted flexible mic boom descends from left or right side
• Belt-mounted power module operates on battery or phantom power
• 55" (1.4 m) cable permanently attached between microphone and power module

Specifications:

• Element: Condenser
• Polar Pattern: Cardioid
• Frequency Response: 60 - 15,000Hz
• Open Circuit Sensitivity
  PHANTOM: -51 dB (2.8 mV) re 1V at 1 Pa
  BATTERY: -53 dB (2.2 mV) re 1V at 1 Pa
• Impedance
  PHANTOM: 200 ohms
  BATTERY: 270 ohms
• Maximum Input Sound Level
  PHANTOM: 132 dB SPL, 1 kHz at 1% T.H.D.
  BATTERY: 121 dB SPL, 1 kHz at 1% T.H.D.
• Signal to Noise Ratio : 58 dB, 1 kHz at 1 Pa
• Dynamic Range (Typical)
  PHANTOM: 96 dB, 1 kHz at Max. SPL
  BATTERY: 85 dB, 1 kHz at Max. SPL
• Phantom Power Requirements
  9 - 52V, 2 mA typical
• Battery Type: 1.5V AA/UM3
• Battery Current/Life: 0.4 mA/2000 hours typical
• Switch: Off/on-flat/on-roll-off
• Low Frequency Roll-off: 80 Hz, 18 dB per octave
• Weight: 2.1 oz (60 g)
• Power Module: In-line
• Output Connector: XLRM-type (power module)
• Accessories Furnished: AT8139L large windscreen; AT8139S small windscreen; AT8439 clothing clip; AT8530 power module (attached); battery