L7 Product Introduction:
The YINGMI L7 is a premium dual‑band wireless tour guide system engineered for crystal‑clear audio, exceptional range, and all‑day comfort. Combining UHF 663–694 MHz and 2.4 GHz frequencies, it delivers stable, interference‑free transmission up to 200 meters. With a featherlight 16g receiver, 20‑hour transmitter battery life, and professional‑grade audio processing, the L7 sets a new standard for high‑quality guided tours in museums, factories, conferences, and outdoor venues.
Product Parameters (Specification):
Transmitter (L7-T)
| Parameter |
Details |
| Carrier Frequency |
UHF 794-806 MHz |
| Channel Number |
150 CH (Adjustable 1-150) |
| Communication Range |
≤ 100 meters |
| Charging Time |
2.5 hours |
| Weight |
48g |
| Dimension |
114.8mm(L)×54.8mm(W)×20.6mm(H) |
| Working Time |
≥ 8 hours |
Receiver (L7-R, Ear-mounted)
| Parameter |
Details |
| Carrier Frequency |
UHF 794-806 MHz |
| Channel Number |
30/48/150/OEM (Adjustable) |
| Communication Range |
≤ 100 meters |
| Charging Time |
2.5 hours |
| Weight |
16g |
| Dimension |
56.2mm(L)×23.6mm(W)×15.6mm(H) |
| Working Time |
≥ 8 hours |
Product Feature and Application:
Core Features
Feather-Light Comfort: At only 16g, the L7 is so light your guests will forget they are wearing it, ensuring a fatigue-free "High-quality" experience.
Crystal Clear Audio: Advanced digital noise-reduction technology filters out background distractions, delivering the guide's voice directly and clearly.
Hygienic Non-In-Ear Design: The receiver stays outside the ear canal, promoting hygiene and safety for public use.
Smart Management: Supports one-button frequency pairing and collective shutdown, saving time for tour organizers.
Application Scenarios
VIP Government Receptions: Professional and dignified audio for high-level visitors.
Museums & Art Galleries: Immersive, silent guidance that preserves the venue's atmosphere.
Industrial Tourism: Strong signal penetration even in bustling factory environments.
Religious Pilgrimages: Reliable communication for large outdoor groups.
Product Details:
Premium Build: The L7 features a sleek, professional aesthetic with high-durability housing to withstand daily use.
Visual Monitoring: The transmitter is equipped with a high-definition LCD screen showing channel, volume, and battery status.
Intelligent Charging: Compatible with the HM-EB series contact-type charging box, which uses smart voltage management to extend the lifespan of the internal batteries.
Professional Storage: Fits into our custom-molded aluminum alloy cases with shock-absorbing silicone to ensure safe transport.
Packing and Shipping:
Packing
Packaging Details: Standard export packing. One unit with one independent box.
Shipping
DHL/FedEx/UPS/EMS: 3-7 workdays
FAQ:
Q1: How stable is the signal in a crowded city center?
A: The L7 uses UHF high-frequency bands and digital modulation to effectively bypass interference from Wi-Fi or Bluetooth, ensuring a stable, "High-quality" connection.
Q2: Is there a limit to how many receivers one transmitter can talk to?
A: No. You can connect an unlimited number of L7 receivers to a single transmitter, making it perfect for groups of 10 or 1,000.
Q3: How long will the battery last on a full charge?
A: The system provides at least 8 hours of continuous use, which is more than enough for a full day of touring without needing to recharge.
Q4: Is the receiver hygienic for different people to use?
A: Yes. The L7 features a non-in-ear design, so it never touches the inner ear canal, making it the most hygienic choice for public attractions.
Q5: What if I have multiple groups visiting the same museum?
A: The L7 supports up to 30 independent channels. Multiple groups can operate side-by-side in the same room without any cross-talk or audio overlapping.
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High-quality Wireless tour guide system Images
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