Self-guided Audio Guide
Why Choose Yingmi Self-guided Systems
Reliable audio guide technology trusted by 500+ venues worldwide

Crystal Clear Audio Quality
Professional noise-canceling technology ensures every word is heard clearly, even in crowded spaces.
Easy Installation & Management
Plug-and-play deployment with web-based content management system, no technical team required.
Long Battery Life
Up to 12 hours continuous playback for handheld devices, supporting full-day operation.
19 Years Industry Experience
Professional audio guide manufacturer with complete R&D, production and after-sales support.
Product Overview
The SAG Series Self-guided Audio Guide is a commercial-grade portable audio playback system engineered for museums, heritage sites, exhibition centers, and public visitor tours. Designed to withstand high-frequency public handling, the hardware integrates a high-impact ABS-PC enclosure, multi-trigger synchronization architecture (RF, Infrared, and GPS), and a high-density lithium-polymer power system.
Batch device management, content updates, and firmware flashing are handled centrally via dedicated docking and data-sync racks, processing up to 60 units simultaneously through a single terminal connection.
Product Types / Configuration
|
Model |
Trigger Technology |
Memory Capacity |
Target Deployment Environment |
|
SAG-RF100 |
2.4GHz RF Multi-channel |
8GB / 16GB Flash |
Multi-zone indoor galleries, large museums |
|
SAG-IR200 |
Directional Infrared (IR) |
16GB Flash |
Precise exhibit-specific point-to-play spaces |
|
SAG-GPS300 |
GPS / Beidou Dual-mode |
32GB Flash |
Open-air heritage sites, botanical gardens, outdoor parks |
Impact-Resistant Enclosure
Injection-molded from engineering-grade flame-retardant ABS-PC alloy, engineered to survive everyday drop impacts during visitor handling.
Antimicrobial Surface Treatment
Casing compound infused with silver-ion masterbatch additives to inhibit bacterial proliferation across multi-user shifts.
Multi-Language Capacity
Onboard firmware supports up to 32 independent audio channels for simultaneous multi-language deployments.
Low-Power Audio Processing
ARM Cortex-M4 core combined with a high-efficiency audio codec yields up to 18 hours of continuous playback per charge cycle.
Asset Management Integration
Optional integrated RFID tracking tags embedded within the device housing for automated inventory control.
Technical Specifications
|
Parameter |
Specification Details |
|
Processor |
32-bit ARM Cortex-M4 RISC core |
|
Storage |
Onboard NAND Flash (8GB / 16GB / 32GB options) |
|
Audio Format Support |
MP3 (8Kbps-320Kbps), WAV (16-bit / 48kHz), FLAC |
|
Frequency Response |
20Hz - 20KHz |
|
Battery Specification |
3.7V 1200mAh Rechargeable Lithium-Polymer |
|
Continuous Playback Time |
>= 18 hours at 50% volume |
|
Charging Cycle |
2.5 hours from 0% to 100% via docking station |
|
Operating Temperature Range |
-10 degree C to +50 degree C |
|
Dimensions |
145 mm x 55 mm x 22 mm |
|
Weight |
98 g (including battery) |
Components / Functions
Audio Output
Standard 3.5mm TRS headphone jack and built-in 8 ohm / 1W ceramic speaker.
Input Interface
Sealed tactile rubber keypad (Power, Volume +/-, Track +/- , Play/Pause).
Sync Interface
Pogo-pin magnetic bottom contacts for charging and data communication, eliminating physical wear on internal USB ports.
Status Indicator
Dual-color LED (Red for charging/low battery, Blue for active playback/sync).

Applications
Museums & Art Galleries: Zone-restricted automated narration that prevents audio overlap between adjacent exhibits.
Exhibition Halls & Cultural Centers: Visitor routing and multi-language storytelling for public exhibitions.
Historic & Archaeological Sites: Weather-resistant outdoor guidance operating under varying humidity and temperature fluctuations.
Tourism & Heritage Landmarks: Seamless deployment for large-scale visitor groups requiring reliable, maintenance-friendly hardware.
Customization & OEM/ODM
Casing Color & Branding
Custom Pantone color matching for housing injection molds; laser-engraved or silk-screened client logos.
Firmware Customization
Tailored user interfaces, custom boot screens, restricted menu options, and locked volume caps for specialized visitor groups.
Accessory Bundling
Custom-configured charging cabinets (10, 30, or 60 slots) equipped with surge protection and centralized cooling fans.

★Molding & Tooling: High-precision CNC machined steel molds ensuring consistent wall thickness (2.0 mm) and structural rigidity.
★SMT Assembly: Automated surface mount technology lines placing components with high positional accuracy.
★Environmental Testing Protocol
- Thermal shock chamber testing (-20 degree C to +60 degree C cycling over 48 hours).
- Drop test bench verification for everyday public handling durability.
- Traceability: Laser-etched serial numbers on every printed circuit board and main housing component for lot tracking and component genealogy.
How Self-guided Audio Guide Works
Deploy at Venue
Install QR codes / NFC tags at each exhibit or spot, upload audio content to the management platform.
Visitors Activate
Visitors scan the code with their phone or pick up a handheld device to start the self-guided tour.
Explore at Own Pace
Visitors listen to commentary freely, pause anytime, and explore the venue in their preferred order.
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