Description
AT 21GM Gooseneck Microphone
Professional Conference & Speech Gooseneck Microphone
The AT 21GM is a premium condenser gooseneck microphone designed for conference rooms, podiums, auditoriums, meeting halls, educational institutions, houses of worship, and public speaking applications. Featuring an ultra-cardioid pickup pattern, touch-control operation, and flexible power options, the AT 21GM delivers clear voice reproduction with excellent feedback rejection.
Key Features
- High-quality condenser microphone capsule
- Ultra-cardioid polar pattern for focused voice pickup
- Wide frequency response from 20Hz to 18kHz
- Long 530mm flexible gooseneck design
- Electronic touch switch operation
- Built-in status lamp indicator
- Multiple power supply options
- Low-noise audio performance
- Balanced XLR output connection
- Up to 24 hours battery operation
Technical Specifications
| Specification | Details |
|---|---|
| Model Name | AT 21GM |
| Product Type | Gooseneck Conference Microphone |
| Capsule Type | Condenser |
| Polar Pattern | Ultra-Cardioid |
| Frequency Response | 20Hz – 18kHz |
| Output Impedance | 200Ω |
| Sensitivity | -40dB ±1dB |
| Reference Pickup Distance | 50cm |
| Gooseneck Length | 530mm |
| Cable Length | 6m Dual-Core Cable |
| Audio Connector | Female XLR + Male XLR |
| Battery Backup | Up to 24 Hours (3V Battery) |
| Switch Type | Electronic Touch Switch |
| Indicator Light | Built-in Status Lamp |
Power Supply
- 3V Battery
- 5V DC Adapter
- 10V DC Adapter
- 48V Phantom Power
Applications
- Conference Rooms
- Boardrooms
- Auditoriums
- Educational Institutions
- Government Offices
- Houses of Worship
- Public Address Systems
- Seminars & Presentations
- Corporate Meetings
Package Contents
| Accessories Included | Quantity |
|---|---|
| Conference Microphone Base | 1 |
| 530mm Gooseneck Pole | 1 |
| 6m Audio Cable (Male XLR to Female XLR) | 1 |
| 30cm Conversion Cable | 1 |
| Type-C Cable | 1 |
| 5V Power Plug | 1 |
| 10V Power Adapter | 1 |
| Windproof Foam Cover | 1 |
Product Description
The AT 21GM Gooseneck Microphone is engineered for professional speech reinforcement and conferencing applications. Its ultra-cardioid pickup pattern captures voice with exceptional clarity while minimizing unwanted ambient noise. The flexible 530mm gooseneck allows precise microphone positioning, while touch-switch control and multiple power options provide convenient operation in various installation environments.
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