A420
Conference omnidirectional microphone
The A420 is a conference omnidirectional microphone that supports secondary cascading. It contains 8 array microphones, supports omnidirectional pickup within a range of 4.5 meters, and is equipped with proprietary audio algorithms, providing an excellent pickup experience in conference scenarios. The omnidirectional microphone supports secondary cascading, serving as both a primary microphone and an expansion microphone, allowing flexible configurations for different-sized conference rooms. Additionally, the A420 is equipped with a 5W high-power speaker for clearer vocals and an immersive experience.
Note: The machine is equipped with Dongle without battery
Product Features
- 8 microphone beamforming, 4.5 meters omnidirectional pickup
- Built-in echo and noise cancellation algorithms
- Supports one-way USB-C to USB-C secondary cascading, master- slave reuse Single 5W full-range speaker
- Three-color LED indicator bar for status display
- Built-in Bluetooth 5.1 adapter, supports up to 10 meters transmission Supports Kensington physical theft prevention
- USB plug-and-play, compatible with Windows/Mac OS/Android/Linux
Specification parameter
| Item | Functions | Description |
| Pickup | 8-array microphones, 4.5-meter pickup radius, 360° pickup | |
| Sampling Frequency | 48 kHz sampling rate (USB) / 16 kHz sampling rate (Bluetooth) | |
| SNR | ≥65dB | |
| Full duplex audio | Support | |
| Speaker | Power | 1x 5W Full-Range Speaker |
| Volume | 85dB SPL,5w，（at 1m distance） | |
| Audio Processing | Echo Cancellation | Support |
| Noise Suppression | Support | |
| Automatic Gain Control Host | Support | |
| Interfaces | Host | 1x USB-C Port，USB 2.0，Connectable to terminal devices |
| Cascade port | 1x USB-C Port ，USB 2.0 ，Can be cascaded with another A40 |
| Power supply | 1x USB-C Power Input Port | |
| Lock | 1x Kensingto | |
| Keys | Power Key/Answer Key/Volume Down Key/Mute Key/Volume Up Key/Hang Up (Bluetooth) Key | |
| Bluetooth | Bluetooth 5.1 | |
| Cascading | Supports cascading with another A420 for use | |
| Indicator Light Strip | The body is equipped with a tri-color LED light strip (red, green, blue) for displaying status. | |
| Battery | not support | |
| Power Supply Method | Powered by a power adapter | |
| System Compatibility | Windows 7/8/10; macOS10.10 or later; Linux ((requires UAC system support)；Android（universal, may perform differently on each system integration） | |
| Operating Conditions | Storage Temperature：-10℃ ~ +70℃ Storage Humidity：20%～95% Working Temperature ：-10℃ ~ +50℃ Working Humidity：20%～80% Environment： Indoors | |
| Accessories | 1x 12V/1.5A USB-C Power Adapter 1x 5m USB-C to USB-C data cable 1x 3m USB-C to USB-C data cable 1x Bluetooth USB Dongle | |
| Dimension | 150mm x 155mm x 44mm | |
FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference.
- This device must accept any interference received, including nterference that may cause undesired operation.
Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device under Part 15 of the FCC Rules. These limits are designed to protect reasonably against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used by the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. Suppose this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on.In that case, the user is encouraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment to an outlet on a circuit different from the receivers.
- Consult the dealer or an experienced radio/TV technician for help.
Radio Frequency Exposure Statement
The device has been evaluated to meet general RF exposure requirements. The device can be used in fixed/mobile exposure condition. The min separation distance is 20cm.
Documents / Resources
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Minrray A420 Conference Omnidirectional Microphone [pdf] User Manual 2A4VH-A420, 2A4VHA420, A420 Conference Omnidirectional Microphone, A420, Conference Omnidirectional Microphone, Omnidirectional Microphone, Microphone |