AKG HC644-MD Head-Worn Microphone

The AKG HC644 MD Head-Worn Microphone is well suited for a variety of applications such as corporate speaking, educational presentations, or aerobics.

The improved design utilizes a smaller capsule with higher sensitivity, solid RF shielding, and is sweat resistant.

The head-worn mic is well protected against interference caused by the inundation of wireless systems in the low to mid price range that are based on 2.4 GHz technology.

AKG HC644-MD Includes:

• (1) AKG HC644 Head-Worn Microphone
• (1) MDA1 AKG Adapter Connector
• (1) Windscreen
• (1) Carrying Case
• (1) Limited 2-Year Warranty

AKG HC644-MD Features:

• For Educational and Corporate Presenters
• Ideal for Actors and Aerobic Trainers
• High-Quality Sound
• Safe for RF Sensitive Environments

AKG HC644-MD Specifications:

• Type: Back-electret condenser
• Polar Pattern: Cardioid
• Sensitivity: 20 mV/Pa
• Frequency Response: 20 Hz to 20 kHz
• Impedance:
  • Electrical Impedance: ≤ 200 Ohms
  • Recommended Load Impedance: ≥ 2000 Ohms
• Equivalent Noise Level: 34 dB(A)
• Signal-to-Noise Ratio: 60 dB(A) re 1 Pa
• Maximum SPL for 0.5% THD: 115 dB
• Power:
  • Operation Voltage: 1 to 10 VDC
  • Current Consumption: ≤ 500 μA RL=2.2 kOhms Vs=2.0 VDC
• Output Connector: 2-pin Microdot
• Temperature: 14 to 140°F / -10 to 60°C
• Dimensions (L x W x H): 7.9 x 5.1 x 1.4" / 200.0 x 130.0 x 35.0 mm
• Weight: 1.1 oz / 30.0 g (including cable)