AKG HC644 MD: The Ultimate Head-Worn Wireless Microphone
Upgrade your audio game with the AKG HC644 MD! Building on the legacy of the C544 and C555, this high-performance head-worn condenser microphone is a must-have for presenters and fitness enthusiasts alike.
- • Next-Gen Design: Compact and sensitive, the HC644 MD offers exceptional sound quality.
- • Superior Shielding: Protects against interference from 2.4 GHz wireless systems.
- • Sweat-Resistant: Built to withstand the rigors of intense workouts.
Whether you're delivering a presentation or breaking a sweat, the AKG HC644 MD has you covered. With its wide frequency response and comfortable fit, this microphone is perfect for any situation.
Specifications
- Type: Back-electret condenser
- Audio frequency bandwidth: 20 - 20000 Hz
- Equivalent noise level: 34 dB-A
- Sensitivity: 20 mV/Pa
- Max. SPL for 1 % THD - 135 dB: Yes
- Electrical impedance: 200 Ohms
- Recommended load impedance: 2000 Ohms
- Self noise: 60 mW
- Polar Pattern: Cardioid
- Dimensions
- Length: 200 mm
- Width: 130 mm
- Height: 35 mm
- Net Weight: 30 g
- Audio Output
- Powering Interface
- Application
- Sports / Fitness
- Assisted Listening
- Sound Reinforcement
- Presentation
- Retail
- Included:
- 1 x HC644 MD Head-Worn Microphone
- 1 x MDA1 AKG Adapter Connector
- 1 x Windscreen
- 1 x Carrying Case

The AKG HC644 MD Head-Worn Wireless Microphone is a versatile audio solution suitable for various scenarios. It's perfect for presenters in the corporate world and fitness enthusiasts. With a compact design measuring 200 mm in length, 130 mm in width, and 35 mm in height, and weighing just 30 g, it's comfortable to wear for extended periods. Its sweat-resistant build makes it ideal for sports and fitness activities like aerobics. The microphone offers a wide audio frequency bandwidth of 20 - 20000 Hz, ensuring clear sound reproduction. It features a cardioid polar pattern for focused audio capture. Whether you're making a presentation, working out, or in need of assisted listening or sound reinforcement, this microphone has got you covered.