Your Professional Network Digital Conference System Supplier!
Tendzone, established in 2010, is a global leader in providing advanced audio-visual (AV) solutions and manufacturing high-quality AV products. We specialize in a wide range of cutting-edge technologies, including audio processors, microphones, speakers, power amplifiers, AV over IP systems, digital conference systems, and MIDIS Distributed Multimedia Transmission Control Systems. Our solutions are trusted across industries such as conference rooms, command centers, education, multi-functional halls, and stadiums.
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Desktop Delegate Rectangular Columnar UnitThe Tendzone MTZ-921C&MTZ-921D all-digital network conference system microphone units are pure conference discussion speaking units.
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Desktop Chairman Rectangular Columnar UnitThe Tendzone MTZ-921C&MTZ-921D all-digital network conference system microphone units are pure conference discussion speaking units.
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Desktop Delegate Gooseneck UnitThe Tendzone MTZ-910C&MTZ-910D all-digital network conference system microphone units are pure conference discussion speaking units.
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Desktop Chairman Gooseneck UnitThe host and units, and units and units are directly connected by network cables, supporting ring links. The speaking unit provides chairman unit and delegate unit.
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Desktop Delegate Rectangular Columnar UnitThe host and units, and units and units are directly connected by network cables, supporting ring links. The speaking unit provides chairman unit and delegate unit.
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Desktop Chairman Rectangular Columnar UnitThe Tendzone AMH-N72C&AMH-N72D all-digital network conference system microphone units are pure conference discussion speaking units.
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Desktop Delegate UnitThe Tendzone AMH-N70C&AMH-N70D all-digital network conference system microphone units are pure conference discussion speaking units.
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Desktop Chairman UnitThe Tendzone AMH-N70C&AMH-N70D all-digital network conference system microphone units are pure conference discussion speaking units. The host and units, and units and units are directly connected by
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Network Conference System HostThe Tendzone AMH-800N all-digital network conference system host is a lossless and non-compressed network-based hand-in-hand digital conference system with built-in multiple DSP core algorithms.
Why Choose Us
Expertise & Experience
With years of experience in manufacturing and systems integration, our skilled team optimize your AV environment for exceptional performance and ease of use.
Tailored & Flexible Services
Recognizing that each client has unique needs, we collaborate closely with you to create solutions that are perfectly suited to your specific requirements.
Quality Control
All our products undergo rigorous testing to ensure they meet the highest standards of durability and performance.Our commitment to cutting-edge technology ensures reliability, outstanding performance, and seamless integration with your systems.
Reliable Support & Maintenance
Our dedicated team provides comprehensive support throughout the project lifecycle, project design, product recommend and installation suggestions, technical assistance, ongoing maintenance and support.
OEM/ODM Service
Our dedicated customer support team offers reliable technical support, quick response times, and preventive maintenance service.
OEM Service
As a professional AV provider, We focus on understanding the unique requirements of our clients.Identify any technical limitations or challenges the client currently faces, such as space constraints, budget limitations, or specific user needs.
- Logo
- Package
- Colors
- Materials
ODM Service
Maintenance Services: Offer client-customized maintenance plans based on usage, equipment types, and client preferences.Increased lifespan and reliability of the AV systems, leading to a better overall client experience.
- Communicating
- Confirming
- Customizing

Desktop Delegate Rectangular Columnar Unit
The Tendzone MTZ-921C&MTZ-921D all-digital network conference system microphone units are pure conference discussion speaking units.
Desktop Delegate Gooseneck Unit
The host and units, and units and units are directly connected by network cables, supporting ring links. The speaking unit provides chairman unit and delegate unit. The delegate unit can be set as VIP.
Desktop Delegate Rectangular Columnar Unit
The Tendzone AMH-N72C&AMH-N72D all-digital network conference system microphone units are pure conference discussion speaking units. The host and units, and units and units are directly connected by network cables, supporting ring links. The speaking unit provides chairman unit and delegate unit.
Network Digital Conference System Specification
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Hardware Specification |
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Model |
MTZ-921C / MTZ-921D |
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Conference Bus |
1 RJ45 universal standard interface, the conference host and the unit are connected hand in hand or in a ring , and a three-way connector is required 1 XLR port, for connecting audio processors and other devices |
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LED Indicator |
Both the microphone stem and the microphone switch button have LED status feedback indicators |
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Earphone |
1 3.5mm mini three - core , with headphone listening function, headphone volume can be adjusted , |
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Priority button |
The chairman unit has a chairman priority button with definable functions. |
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TF interface |
Used to update the background image |
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Type -C interface |
For debugging and upgrading |
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High-performance DSP |
The unit itself has a built-in DSP with processing functions such as gain, noise gate, high-pass filter, DEQ , and 10- band parametric equalization. |
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Performance |
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Microphone Type |
Rectangular columnar microphone |
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Pickup head |
14mm condenser cardioid polar pattern |
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Sensitivity |
-34/kHz at 1Pa |
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Frequency Response |
50Hz-18KHz |
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Output Impedance |
600 Ω |
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Signal-to-Noise Ratio |
>83dB/1kHz at 1Pa |
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Maximum input sound pressure level |
128dB SPL/1kHz at 1% THD |
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Others |
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Operating temperature |
0 ℃ ~45 ℃ |
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Storage temperature (transportation with outer packaging, storage status) |
-20 ℃ ~ 60 ℃ |
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Operating humidity |
10% ~ 90 % RH |
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Non-operating environment humidity |
5 %~ 95 % RH |
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Operating temperature |
0 ℃ ~45 ℃ |
The Main Features Of Network Digital Conference System
Digitization
All internal transmissions are digital signals, and the microphones used by the participants all use "mode-to-digital" conversion technology. Most devices also use mode-count and count-to-mode converters so that external analog devices (such as broadcast, recording, wired or wireless audio equipment, etc.) can access the digital system network directly through the audio media interface.
Modularization
Meetings with any level of requirements can configure the system by modularly selecting a combination of equipment that meets the requirements. For the established system, more multimedia devices can be added, which can be controlled by computer software to further expand the syste.
The equipment required for a complete network digital conference system is a conference automation management system that integrates computer, communication, automatic control, multimedia, image, audio and other technologies.
The network digital conference system is generally composed of network, projection display, audio, monitoring, conference speech, lighting effects and central control.
All systems use computer network as a platform to share data and control information, decentralize work, and centralize control, enabling equipment operators to monitor and control all equipment easily and quickly.

The Network Digital Conference System Functions
- Supports ring backup connections.
- Equipped with built-in environmental noise canceller, digital equalization circuits, preventing feedback.
- CAT 6-core DIN cables for microphone connections, effectively preventing electromagnetic interference on the lines.
- Dual-machine hot backup mode functionality, allowing system backup.
- Equipped with a 4.3-inch true color touchscreen and an embedded Linux system with a Chinese operating interface.
- Allows touchscreen settings for conference modes, system volume adjustment, microphone management, unit
- Numbering, camera parameters, video tracking settings, and ring light settings, among other functions.
- Conference modes include free mode, rotation mode, restriction mode, application mode, voice control mode, PTT mode, VIP mode, and timing mode.
- Supports 5V-24V fire linkage alarm interfaces for expanded functionality, such as connecting to fire alarm ports.
- USB recording function for conferences.
- Supports three camera control interfaces: RS232, RS422, and Rs485.
- The main unit can centrally adjust the output gain of attendance units and set audio adjustment locks.
- Features DATA network control interface, extending network cables up to 1000 meters for conference management.
- Offers live "hot-swappable" functionality for enhanced system safety.
- Features "hand-in-hand" and loop connections for easy installation and maintenance.
- Support PC control commands for management software and central control devices.
- When paired with a telephone coupler, enables remote telephone conferences.
After-Sales Services
Technical Support
Professional Tech support team ensure any issues with the AV system are promptly addressed.
Maintenance Services
Offer client-customized maintenance plans based on usage, equipment types, and client preferences.Increased lifespan and reliability of the AV systems, leading to a better overall client experience.
Upgrades and Updates
Keep to provide the upgrade software to our clients.
Feedback and Improvement
Customer's feedback will keep to foster continuous improvement in service.
Packaging and Shipping
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Packaging |
Plastic bag, paper box, customizable |
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Transportation methods |
Road transport, rail transport, sea transport, air transport |
Honor And Qualification





Shenzhen Tendzone Intelligent Technology Co., Ltd. is one of the most professional network digital conference system manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade network digital conference system made in China here from our factory.
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