Wireless discussion unit with channel selector VIS-WSC
Model VIS-WSC Series

Overview
The VIS-WSC series combines a wireless discussion unit with an interpretation channel selector, ideal for multilingual conferences without table cabling.
Based on Wi-Fi 2.4/5 GHz technology and fully uncompressed digital audio, it offers high voice quality, low latency, and strong interference resistance.
The dual channel selector and two headphone outputs let each attendee listen to their preferred language with total flexibility.
Software configuration enables chairman/delegate roles, microphone limits, speaking modes, and additional functions such as voting and camera tracking.
Technical specifications
Wireless · Technology
Standard Wi-Fi compatible with other Wi-Fi networks; supports 2.4 GHz and 5 GHz.
Wireless · Latency
Very low audio latency suitable for real-time discussion.
Wireless · Security
AES 128-bit digital encryption, WPA2, MAC filtering, and SSID hiding.
Wireless · Units Per AP
Up to 50 units per typical access point, expandable with additional APs.
Wireless · Active Units
Up to 8 units with open microphone simultaneously.
Audio · Transmission
Fully digital transmission and processing, uncompressed audio 20 Hz – 20 kHz.
Audio · Processing
DSP with AGC, AFC, ANC, AEC, and auto-mix to improve intelligibility and prevent feedback.
Audio · Internal Speaker
Integrated high-fidelity speaker that mutes automatically when the microphone is activated.
Audio · Headphone Outputs
Two 3.5 mm headphone outputs (left/right) with independent volume control.
Audio · Channel Selector
Dual interpretation channel selector so the user can choose a language on each headphone output.
Unit · Design
Low-profile design with touch interface and no protruding mechanical buttons.
Unit · Display
OLED display showing selected channel, volume, RF signal level, battery status, time/date, and timer.
Unit · Microphone
Plug-in cardioid microphone with two-color LED ring to indicate speaking/request status.
Unit · Buttons
Touch MIC ON/OFF button; chairman version includes priority and request management, with optional voting keys depending on model.
Unit · Role Configuration
Any unit can be configured via software as chairman or delegate (VIS-WSC-T model based).
Unit · Timer
Speaking time limit function with a warning or automatic cut-off according to the configured mode.
Unit · Firmware Update
MCU with wireless firmware update support.
Unit · Power Supply
Powered by a dedicated rechargeable battery (VIS-WBTY series) with optional external DC power.
Conference Modes · Modes
OPEN: any delegate can activate their microphone up to the open microphone limit. · OVERRIDE: the new speaker replaces the oldest when the configured maximum is exceeded. · VOICE: voice-activated without pressing a button, with adjustable threshold and timer. · APPLY: request to speak and authorization from the chairman or the software.
Auto-tracking · Camera
Integration with HD PTZ cameras and matrices via RS485/RS232 using PELCO/VISCA to position the camera according to the active microphone.
Key features
- Fully digital wireless unit with Wi-Fi 2.4/5 GHz and AES 128-bit encryption.
- Integrated dual interpretation channel selector for language distribution via IR or RF through the central system.
- Informative OLED display and touch controls for microphone, volume, and channel selection.
- Advanced DSP processing (AGC/AFC/ANC/AEC/auto-mix) delivering clear, controlled sound.
- Integration with PTZ cameras for auto-tracking and support for various conference and voting modes depending on system configuration.
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