Delegate Unit [Backlit Desktop-Mounted with Long Gooseneck]

Model VM-BDZ04D

Product Overview
VM-BDZ04D is a digital desktop delegate microphone adopting patented CNC-machined exterior, matched with aluminum alloy and high-strength plastic shell for long service life and sophisticated look.
It supports talk function and automatic video tracking. A full-view dual-color LED screen and red LED ring on the flexible metal gooseneck show real-time working status. Silent mechanical keys avoid switching pop noise, while a professional cardioid condenser capsule delivers ultra-low noise and transparent vocal audio.
The threaded detachable mic arm reduces handling noise. Powered by safe DC24V SELV via standard T-type 8P daisy-chain cable, it features bilingual UI and factory reset function, perfectly matching digital conference host systems for corporate and government meeting rooms.

Functional description

Technical specifications

1. Patented CNC integrated digital housing constructed with aluminum alloy and high-strength plastic, delivering elegant appearance and outstanding durability for formal high-end conference projects
2. All-in-one core conference functions: talk activation, one-touch chairman priority override and automatic camera tracking to streamline meeting management
3. Full-view dual-color LED status display plus red LED ring on flexible metal gooseneck, clearly differentiating standby and speaking status for instant visual recognition
4. High-sensitivity silent mechanical buttons eliminate popping noise during activation, maintaining quiet, distraction-free meeting environments
5. Advanced dedicated signal processing chip with premium audio circuitry, paired with cardioid condenser capsule to achieve ultra-low self-noise, >90dB SNR and <0.05% THD for transparent, crystal-clear vocal pickup
6. Detachable threaded full-metal gooseneck with replaceable anti-pop windscreen, effectively reducing handling noise and simplifying transport & maintenance
7. Safe DC24V SELV passive power supply powered by central host, supporting stable long-duration continuous operation
8. Standard shielded T-type 8P daisy-chain cable for serial connection; customized extension cables available to fit various venue layouts
9. System supports unlimited chairman units deployable at any position within the daisy-chain loop for flexible layout design
10. Built-in factory reset function, Chinese & English bilingual UI to adapt global conference market demands

Model	VM-BDZ04D
Microphone Type	Cardioid electret condenser
Frequency Response	20 Hz – 20 kHz
Sensitivity	–40 dBV/Pa
Signal-to-Noise Ratio	>90 dB (at 1 kHz)
Total Harmonic Distortion (THD)	<0.05%
Display Type	Dual-color LED status display
Connection Port	8P-DIN socket
Power Supply	DC 24V SELV (passive power from central host)
Base Unit Dimensions	117 × 154 × 51 × 17 mm