Multichannel Tour Guide System

Multi-group Management: Handle multiple groups simultaneously without confusion.
Personalized & Multi-language: Adapts to visitor language preferences and needs.
Interactive & Real-time Control: Guides manage the tour while visitors can interact.
Analytics & Insights: Track visitor behavior to optimize operations.
Flexible & Scalable: Easily adapts to group sizes and diverse venues.
Customizable Content: Easily upload or update multimedia content to match exhibitions or events.

Product Overview
A multichannel tour guide system enables wireless, high-fidelity audio transmission from a presenter to multiple listeners in commercial, cultural, and public environments. Engineered for museums, heritage sites, guided city tours, and multi-language event spaces, the system ensures crystal-clear vocal reproduction and eliminates multi-group interference through advanced digital modulation and channel separation protocols.
Standard configurations consist of a lightweight bodypack or one-piece transmitter paired with multiple ergonomic receivers. Modular system designs scale efficiently to support concurrent operations across multiple independent groups in high-density visitor zones.
How It Works / Product Technology
Digital wireless architecture converts analog voice input into uncompressed or high-efficiency compressed data packets before radio frequency (RF) transmission.
Modulation Architecture
Employs GFSK (Gaussian Frequency Shift Keying) for robust digital UHF links or adaptive digital hopping for the 2.4GHz spectrum.


Audio Processing
16-bit / 48kHz digital sampling delivers natural vocal reproduction with a total harmonic distortion (THD) under 0.1%.
Latency Control
Sub-20ms audio latency prevents echo artifacts during live presentations.


Interference Avoidance
Automatic Frequency Hopping Spread Spectrum (FHSS) algorithms continuously scan and relocate transmission streams to clean frequency channels in congested RF environments.
Product Types / Configuration
Series U: UHF Band Systems (470-960 MHz)
Operational Profile: Optimized for expansive outdoor heritage sites, archaeological reserves, and large outdoor tour routes.
Key Characteristic: Superior diffraction and long-range stability, ensuring stable links up to 150 meters line-of-sight.
Series D: 2.4GHz ISM Global Band Systems (2400-2483.5 MHz)
Operational Profile: Designed for international deployment across exhibition halls and museums without regional frequency licensing constraints.
Key Characteristic: High channel density support, allowing up to 100 independent groups to function simultaneously in the same facility.
Multi-Channel Capacity
Supports 20 to 100 selectable group IDs, enabling concurrent operation of multiple teams without cross-talk in crowded galleries.
Infrared (IR) Auto-Sync
Synchronizes all receiver channels to the master transmitter within 3 seconds via built-in IR transceivers for quick group setup.
Ergonomic & Lightweight Design
Compact receiver chassis weighing under 50g, designed for comfortable all-day visitor wear with clip-on or lanyard options.
Acoustic Clarity & Noise Suppression
Built-in digital signal processing (DSP) filters ambient crowd noise, maintaining a Signal-to-Noise Ratio (SNR) of >= 75dB.
Extended Power Autonomy
Internal rechargeable Lithium-Polymer cells deliver >= 12 hours of continuous operation for transmitters and >= 20 hours for receivers.
Technical Specifications
|
Parameter |
Specification Data |
|
Operating Frequency Band |
2.4GHz ISM / UHF 470-960 MHz |
|
Transmission Range |
Up to 150m (Line-of-Sight) |
|
Channel Selectability |
20 / 50 / 100 independent IDs |
|
Frequency Response |
50Hz - 14kHz |
|
Signal-to-Noise Ratio (SNR) |
>= 75dB |
|
Total Harmonic Distortion (THD) |
< 0.1% |
|
Battery Chemistry |
Rechargeable Li-Ion (1000mAh - 1500mAh) |
|
Operating Autonomy |
Transmitter: >= 12h |
|
Recharge Cycle Time |
3 hours (via multi-slot charging case) |
|
Operating Temperature Range |
-10C to +50C |
Components / Functions
Transmitter (TX): Features an OLED status screen, 3.5mm microphone input supporting condenser/lavalier mics, digital gain attenuation buttons, and a tactile mute switch.
Receiver (RX): Designed with a volume control interface, 3.5mm audio jack for earphones, LCD status readout for battery and channel ID, and a high-tensile spring steel belt clip.
Multi-Slot Charging & Storage Case: Heavy-duty transport case integrated with 32, 40, or 60 charging slots. Features built-in power regulation circuits with overcharge protection and organized slot spacing for rapid device deployment and collection.
Accessory Ecosystem: Single-side ergonomic earhooks, disposable hygienic foam/silicone covers, adjustable nylon lanyards, and master storage accessories.
Applications
Museums & Cultural Exhibitions: Multi-lingual gallery tours requiring dense channel separation to prevent audio bleeding between adjacent exhibition zones.
Tourism & Sightseeing: Outdoor walking tours, city excursions, and scenic spots, offering lightweight comfort for all-day visitor wear.
Religious & Worship Centers: Seamless voice transmission for large congregations, pilgrimages, or multi-language translation services.
Educational Field Trips & Corporate Visits: Professional yet approachable presentation setups for school campus tours and corporate hospitality.
Customization & OEM/ODM
Manufacturing infrastructure supports comprehensive hardware and software modifications for bulk volume buyers, tour operators, and brand owners:
Firmware & UI Adaptation
Custom startup logo graphics, localized menu languages, and locked frequency profiles aligned with specific regional regulations.
RF Spectrum Tuning
Custom PCB filter configuration to match restricted local frequency allocations.
Enclosure & Visual Branding
Custom pantone color injection molding for housings, laser-etched asset tracking codes, and silk-screened corporate logos or museum branding.
Logistics Packaging
Customized master cartons, retail box artwork, and multi-language user manual printing.
Manufacturing & Quality Control
★SMT Circuit Board Assembly: Yamaha high-speed surface-mount technology lines ensure exact component placement for RF transceiver modules.
★Housing Production: Precision plastic injection molding utilizing durable engineering plastics with scratch-resistant surface textures.
★Rigorous Testing Protocols
- RF Output Verification: Every mainboard is calibrated on Rohde & Schwarz signal generators to verify output power compliance and frequency tolerance limits.
- Environmental Stress Testing: Units undergo temperature cycling from -20C to +60C at 95% relative humidity.
- Mechanical Drop Testing: Standardized 1.2-meter drop test executed across all structural axes to verify structural and housing integrity.
Certifications & Regulatory Compliance
CE-RED Directive Compliance: Certified under the Radio Equipment Directive (2014/53/EU) for electromagnetic compatibility, effective radio spectrum usage, and health/safety standards required for commercial distribution within the European Economic Area.
FCC Part 15 Subpart B Certification: Tested and verified by accredited laboratories to comply with intentional and unintentional radiator limits for digital devices, ensuring legal deployment across North American markets.
RoHS Directive Compliance: Manufactured with hazardous substance restriction controls, ensuring all electronic components, printed circuit board assemblies (PCBAs), and housing plastics conform to heavy metal and chemical limits (Lead, Cadmium, Mercury, Hexavalent Chromium, PBB, and PBDE).
WEEE Compliance: Designed with designated waste electrical and electronic equipment recovery labeling and material tracking documentation to meet European environmental recycling mandates.
Lithium-Ion Battery Safety Standards: Integrated battery cells and management circuits comply with UN38.3 transport safety testing standards and MSDS regulations for secure global air and sea cargo logistics.

China One-Stop Tour Guide System Manufacturer
As the core brand of Hefei Humantek. CO., LTD., Yingmi owns a 50-acre industrial park in Hefei High-Tech Zone equipped with 4 automated SMT production lines. We adopt full independent production and rigorous 5-stage inspection. Certified by ISO9001, CE and RoHS, we supply premium Yingmi audio guides and customized OEM/ODM services for global museums and tourist attractions.
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