Selling Yealink VCM34 video conferencing microphone array devices. 3 are available. Price is for 1. All units are lightly used but in perfect functioning condition and great cosmetic condition. Units are sold as-is with no other equipment, accessories, original packaging, etc.

The Yealink VCM34 is a professional, high-definition tabletopmicrophone array designed as an external audio input expansion for YealinkVideo Conferencing Systems and UVC PTZ cameras. It combines advanced acousticsoftware and hardware to capture clear, distraction-free voice communicationsin meeting rooms of various sizes.

KEY TECHNICAL FEATURES

• 360° Omnidirectional Pickup: Contains a built-in 3-microphone array that captures audio in a complete circle up to a 20-foot (6-meter) radius.
• Optima HD Voice: Utilizes Yealink’s flagship audio engineering to deliver realistic, crystal-clear vocal clarity.
• Noise Proof Technology: Actively suppresses distracting background environment sounds (like air conditioning, shuffling papers, or typing).
• Daisy-Chain Cascading: Up to 4 units can be connected together (cascaded) via Ethernet cabling to stretch coverage across extra-large conference tables.
• Power over Ethernet (PoE): Transmits power, audio data, and control signals through a single standard network cable, reducing messy conference table clutter.
• On-Device Mute Control: Features an integrated touchpad mute button with a multi-colored LED indicator (Green for active, Red for muted).

INTEGRATED AUDIO INTELLIGENCE

The system relies on several automated software algorithmsto maintain call quality:

• Acoustic Echo Canceling (AEC) to eliminate speaker response.
• Voice Activity Detection (VAD) to identify when someone is actively speaking.
• Comfort Noise Generation (CNG) to keep the line from sounding entirely dead during silence.

SPECIFICATIONS

Microphone Type: 3-microphone array

Pickup Range: 20 feet (6 meters)

Pickup Angle: 360-degree omnidirectional

Frequency Response: 100 Hz to 10 kHz

Sensitivity: -32 dB ±2 dB

Signal-to-Noise Ratio (SNR): 68 dB

Maximum SPL: 110 dB

Connectivity& Expansion

• Audio Port: 1 × RJ45 Ethernet port (for signal and power input)
• Expansion Port: 1 × RJ45 Ethernet port (for cascading)
• Max Daisy-Chaining: Up to 4 VCM34 units total
• Power Source: Power over Ethernet (PoE) via IEEE 802.3af

Physical &Environmental

• Dimensions (W × D × H): 169 mm × 171.5 mm × 37.5 mm
• Status Indicator: 1 × capacitive mute touchpad with dual-color LED (Red/Green)
• Operating Humidity: 5% to 90% (non-condensing)
• Operating Temperature: 0°C to 40°C (32°F to 104°F)