Wireless Tour Guide System
Yingmi Wireless Tour Guide System is a portable audio solution that allows tour guides to communicate clearly with groups of visitors. Using wireless transmission technology, it ensures that every participant can hear the guide without interference, making your tours more professional, enjoyable, and interactive.
High-Quality Audio Transmission
Experience clear and stable sound, ensuring every word of the guide is heard without distortion.
Multi-User Capability
Support groups of any size, from small guided tours to large-scale events.

Portable & Lightweight
Compact design allows guides and participants to carry the devices comfortably throughout the tour.
Long Battery Life & Stable Signal
Reliable for extended tours, both indoors and outdoors, without signal dropouts.
Product Overview
A Wireless Tour Guide System is a lightweight, portable audio transmission solution engineered for clear, reliable communication between group leaders and participants in commercial, cultural, and public settings. The complete system consists of portable transmitters (for guides or presenters) and ergonomic receivers (for listeners), bundled with efficient drop-in charging and storage flight cases.
Unlike heavy-duty industrial communication gear, commercial-grade tour guide systems prioritize long-wearing ergonomic comfort, pristine acoustic fidelity, sleek aesthetic design, and intuitive multi-channel operation to enhance the visitor experience in museums, scenic spots, and international conference venues.
How It Works / Product Technology
The system operates on stable digital or analog radio frequency bands—primarily the globally license-free 2.4GHz ISM band or designated regional UHF bands.
Audio Transmission Flow
The guide speaks into a lightweight headset or lapel microphone. The transmitter converts the voice into digital packets, applies acoustic noise filtering, and broadcasts it via digital modulation (GFSK).
Signal Reception
Participants wear compact receivers tuned to the active channel via Phase-Locked Loop (PLL) synthesis, delivering crisp audio directly to single-sided earphones.
Interference-Free Grouping
Utilizing digital ID handshaking or multi-channel separation, multiple tour groups can operate simultaneously in the same exhibition hall or gallery without cross-talk or audio bleeding.

Product Types / Configuration
|
Series Model |
RF Technology |
Concurrency Capacity |
Primary Target Environment |
Target B2B Buyer |
|
TG-240 Series |
2.4GHz Digital Global ISM |
Up to 99 Independent Channels |
Museums, art galleries, city walking tours, multi-national sightseeing |
Tour Operators / Travel Agencies |
|
TG-UHF Series |
Regional UHF (PLL Synthesized) |
Up to 30 Channels |
Large outdoor scenic areas, historic sites, heritage parks |
Scenic Spot Operations / Event Planners |
|
TG-TC Series |
Two-Way Interactive Transceiver |
30 Channels (Two-Way Dialogue) |
VIP guided visits, corporate facility walkthroughs, interactive workshops |
Corporate Event Organizers / AV Rental Companies |
Crystal-Clear Acoustic Fidelity
Optimized frequency response (50Hz to 14kHz) ensures speech intelligibility, reducing listener fatigue during extended guided tours.
Featherweight Ergonomics
Receivers weigh under 50g, designed for comfortable all-day wear with soft silicone or foam ear-hooks.
Extended Shift Battery Life
Integrated lithium-ion polymer batteries deliver 12 to 18 hours of continuous operation on a single charge.
Rapid Batch Synchronization
Infrared (IR) auto-pairing syncs up to 50 receivers to the active transmitter channel in under 3 seconds.
Hygienic Maintenance Ready
Smooth, durable plastic housings allow for quick sanitization between visitor shifts using standard alcohol-based cleaning wipes.
Extended Shift Battery Life:
|
Technical Parameter |
Specification Detail |
|
Carrier Frequency Range |
2.400GHz to 2.483GHz (Digital) / 470 to 960MHz (Regional UHF) |
|
Frequency Response |
50Hz to 14,000Hz |
|
Signal-to-Noise Ratio (SNR) |
>= 75dB |
|
Audio Latency |
< 20ms (zero noticeable lip-sync delay) |
|
Operating Range |
Up to 150 meters line-of-sight in open outdoor environments |
|
Charging Case Capacity |
32-slot, 40-slot, or 60-slot drop-in aluminum charging cases with intelligent over-charge protection |
Components / Functions
Transmitter (TX)
Features a clear OLED screen, volume controls, a mute button, and a standard 3.5mm microphone jack.
Receiver (RX)
Features a channel lock to prevent accidental adjustments by users, a battery indicator, and a standard 3.5mm earphone port.
Storage & Charging Case
Heavy-duty aluminum or ABS flight case with custom-molded foam slots, providing centralized charging and secure transport for fleet deployment.
Applications
Museums & Cultural Heritage Sites
Delivering high-definition audio narratives to large visitor groups without causing ambient noise pollution in quiet galleries.
Global Travel Agencies & Tour Operators
Guiding international tour groups through crowded city streets, historical landmarks, and scenic spots with absolute clarity.
Corporate Visitor Centers & VIP Tours
Providing professional audio presentation experiences for VIP clients, investors, and prospective partners during headquarters walkthroughs.
Simultaneous Interpretation & Conferences
Supporting multi-lingual delegates in breakout rooms or traveling business delegations.
Customization & OEM/ODM
We offer flexible commercial customization options to align with your brand identity or client specifications:
Brand Customization
Custom boot screens, silkscreened company logos on device housings, and custom Pantone-matched body colors.
Packaging & Accessories
Tailored retail packaging, customized user manuals, and specialized accessories (such as branded lanyards or sanitary earphone covers).
Channel Configuration
Pre-setting regional frequency blocks to comply strictly with local radio regulations in your target export market.
Manufacturing & Quality Control
Production is executed in an ISO9001-certified assembly and testing facility, utilizing strict quality standards:
SMT Precision Assembly
Automated pick-and-place lines ensuring stable component soldering and high-frequency module reliability.
01
Acoustic & RF Testing
Every device undergoes frequency tolerance calibration and audio distortion testing before final packaging.
02
Aging & Stress Screening
Assembled units undergo standard burn-in and thermal cycle testing to ensure long-term stability.
03
Logistics Drop Testing
Drop and vibration tests verifying that transport cases protect the internal hardware during international freight.
04
International Compliance
Certified to major commercial safety and radio emission standards required for global retail and institutional deployment.
05

Yingmi : Engineered for Clarity, Built for the Real World
A core brand of Hefei Huima Information Technology, Yingmi has specialized exclusively in wireless tour guide systems since 2007. As a factory-owned brand, it controls the entire vertical supply chain — from R&D and design to in-house PCBA manufacturing — ensuring consistent quality and rapid innovation. Trusted by clients, Yingmi delivers clear, reliable communication in demanding acoustic environments across over 50 countries. It is a technology-driven partner focused on keeping your message heard, anywhere.
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