Product
Digital Array Microphone — NT-M702A & NT-M702C
Omnidirectional · PoE Cascade · 360° Pickup · Conference
Cascading omnidirectional digital array microphone designed for business meetings, interactive teaching, and large conference spaces. Features 360° omnidirectional pickup with built-in audio processing and AI noise suppression algorithms. Supports flexible installation—desktop placement, ceiling mounting, or hanging—and PoE cascading for extended coverage. The NT-M702A is optimized for conference desktop use, while the NT-M702C is designed for suspended ceiling mounting. Both models eliminate background noise, echo, and reverberation to deliver professional-grade voice clarity.
Key Features
- 360° omnidirectional pickup with 6 high SNR digital microphones for uniform room coverage
- PoE cascading: connect up to 6 units with a single network cable for seamless extended coverage
- AI-assisted audio algorithms (AEC, ANS, AGC) eliminate noise, echoes, and reverberation automatically
- Built-in audio processing unit with ultra-low latency—no external processor required
- Dual interface support: USB Type-C (UAC1.0) and analog AUX inputs/outputs for flexible integration
- Blind beamforming automatically locates sound sources and adjusts pickup direction for balanced audio
- Flexible installation: desktop, ceiling-mounted, or hanging—reduces setup time and maintenance costs
- Dual model variants: NT-M702A (desktop with mute button) and NT-M702C (ceiling with IR remote)
- 3-meter clear pickup, 6-meter effective range—ideal for medium to large conference spaces
- Windows, Mac, and Linux compatible for cross-platform deployment
- Professional-grade SNR of 65 dB(A) ensures crystal-clear voice transmission
- Reduces IT overhead with integrated audio processing—simplifies AV system architecture
Specifications
Microphone Array Specifications
Microphone ArrayBuilt-in 6 high signal-to-noise ratio digital microphones
SNR (Signal-to-Noise Ratio)65 dB(A)
Sensitivity-38 dBFS
Sampling Rate32K
Pickup MethodOmnidirectional Microphone
Pickup Range360° omnidirectional pickup
Pickup Distance3 meters clear pickup, 6 meters effective pickup
Audio Processing & Algorithms
Acoustic Echo CancellationAEC — Advanced echo suppression
Noise SuppressionANS — Automatic noise suppression (3A algorithms)
Gain ControlAGC — Automatic gain control for stable pickup
Audio Processing UnitBuilt-in, ultra-low latency for seamless remote calls
BeamformingBlind beamforming for automatic sound source location
Cascade & Network
Number of CascadesSupports up to 6 microphones in PoE cascade
Cascade MethodPoE (Power over Ethernet)
Network InterfaceRJ45 uplink and downlink cascade ports
Power InputPoE cascade 48V power supply (IEEE 802.3at standard) or USB 5V 500mA (single unit)
Interface & Connectivity
USB InterfaceUSB audio interface (Type-C), UAC1.0 protocol
Audio DataAudio data communication, software upgrade, and parameterization
Analog AudioAUX1, AUX2 linear audio inputs and outputs
CompatibilityWindows, Mac, Linux
Model-Specific Details
NT-M702A UsageConference desktop mounting
NT-M702A ControlMute button
NT-M702C UsageSuspended ceiling mounting
NT-M702C ControlInfrared remote control
Physical Specifications
DimensionΦ 170 × H 40 mm
Weight370g
CertificationCE, RoHS, FCC
Installation OptionsDesktop placement, ceiling mounting, hanging installation
Applications
- Corporate Boardrooms & Meeting Rooms — 360° pickup for professional, distraction-free discussions
- Large Conference & Training Rooms — PoE cascading extends coverage for sizable spaces without wiring complexity
- Interactive Classrooms — AI noise suppression enables seamless remote teaching and e-learning
- Video Conferencing & UC Systems — USB plug-and-play for Zoom, Teams, Webex, and custom UC platforms
- Government & Institutional Spaces — Reliable, echo-free communication for formal proceedings and governance meetings
- Hybrid Work Hubs — Flexible mounting and multi-unit cascading for open-plan collaboration spaces
- Broadcasting & Streaming — Professional audio capture with minimal background interference
- Podcast Studios — Omnidirectional pickup reduces setup complexity for multi-speaker recording
- Legal & Courtroom Audio — Compliant, reliable voice documentation for proceedings
- Houses of Worship — Flexible installation and noise suppression for amplified sermons and ceremonies
