Definition & Overview
An infoport system (also known as a tourguide system, bidule, or mobile wireless interpreting kit, manufactured by brands such as Sennheiser, Williams AV, or Listen Technologies) consists of a portable wireless radio transmitter with a headset microphone used by an interpreter, and miniature multichannel receivers with single earpieces worn by listeners. Unlike stationary conference booths, an infoport system is lightweight, battery-operated, and fully mobile.
Operational Rules & Standard Guidance
- Ideal Use Cases: Dynamic delegation walkthroughs, industrial plant inspections, museum site visits, agricultural field days, and brief executive breakout discussions where stationary ISO 4043 soundproof booths are physically impossible to erect.
- Strict Operational Limits: An infoport system is not an acceptable cost-saving substitute for an ISO 4043 soundproof booth at a stationary conference. Because the interpreter speaks directly into a handheld or headband microphone in the open room, ambient noise distracts the interpreter, and the interpreter's voice creates acoustic disturbance for non-listening attendees.
- Audience Cap: Recommended exclusively for small groups (typically 5 to 25 delegates). In large auditoriums, multiple open-mic interpreters cause acoustic cross-talk and room bleed.
- Battery & Charging Logistics: Requires dedicated multi-slot charging cases (charging docks) and spare lithium batteries, with operational battery life typically ranging between 8 and 12 hours.
Operational Impact: Conference planners who attempt to replace full ISO booths with infoport kits frequently face complaints from nearby delegates and rapid interpreter vocal exhaustion. Use infoports for mobility, and soundproof booths for stationary conferences.
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