Minrray A420 Conference Omnidirectional Microphone User Manual
- August 7, 2024
- Minrray
Table of Contents
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.