In the exhibition hall of the World Manufacturing Conference, purchasing representatives from multiple countries were simultaneously visiting the production line. The voices of different teams could be clearly distinguished without any interference. In a 5A scenic area, a tour guide led an international group through the mountains and forests, and the explanations in the tourists’ ears remained stable and clear, allowing them to follow the tour without having to closely follow the group. The technical support behind these scenes comes from the original manufacturer of wireless tour guide devices – Yingmi. Whether it’s for scenic area guiding, government and enterprise receptions, or international exhibitions, Yingmi’s wireless tour guide devices can perform stably in various complex scenarios and has gradually become the preferred original supplier for many foreign customers.
I.Core Pain Points of Wireless Tour Guide Device Purchasing
1.Product performance fails to meet actual needs
When multiple teams use it simultaneously, interference and signal disconnections are common troubles; especially in complex environments such as steel structure factories and dense scenic areas, the signal penetration ability of ordinary explainer devices is simply not enough. Moreover, in noisy environments, the explanation voice is easily covered by background noise. International tourists already may face language barriers, and with unclear sound quality, it is impossible to obtain key information.
2.Compliance and after-sales carry many risks
Exported products often encounter customs clearance difficulties. Without CE, RoHS and other international certifications, equipment cannot be smoothly cleared. Some manufacturers have no after-sales outlets globally, and if the equipment breaks down, the repair will take several weeks, seriously affecting normal reception. More importantly, non-original manufacturers will add prices layer by layer, not only are the prices not cost-effective, but also the customization ability and delivery delay are very common.
3.Appropriate usage scenarios are too poor
When traveling with a team, the device’s battery life is insufficient and the operation is complex, requiring tourists to spend time learning how to use it; when in international scenarios, either the supported languages are not complete or the voltage is not compatible, and additional transformers need to be brought, making it particularly troublesome to use.

II.Scenario-based Recommendation: The Core Advantages of the L7 Team Tour Guide Device
1.Scenic Area Team Guiding: Stable Coverage + Long Battery Life
L7 adopts UHF 794-806MHz high-frequency band transmission technology. In open environments, the signal is stable and does not lag in a 100-meter range. Even in complex terrains such as mountains and exhibition halls, it can penetrate obstacles to transmit sound. It also features digital noise reduction technology, which can effectively filter out the noise of crowds and natural wind in the scenic area, allowing tourists to hear clearly. With a single charge, it can last for more than 8 hours continuously, fully meeting the needs of guiding tourists throughout the day in scenic areas. Combined with a professional multi-slot charging box, it is also convenient and fast for batch management.

2.Enterprise Visit Reception: Anti-interference + Multiple Adaptations
For special environments such as steel structures in factories, L7 uses special circuit processing and digital encryption design. With 150 adjustable channels, it can ensure that multiple teams visiting simultaneously do not interfere with each other. The microphone input can also be adjusted for gain, whether it is different performance microphones or different users’ usage habits, it can be satisfied. The body design is particularly lightweight, with the transmitter weighing only 48 grams and the receiver only 16 grams. The non-inferior earpiece design does not distinguish left and right ears, and wearing it for a long time will not feel uncomfortable, also enhancing the professionalism of enterprise receptions.

3.International Exhibition Scenarios: Compliance + Easy Operation
L7 has already passed EU CE and RoHS certifications, supports global wide-voltage adaptation, does not need to bring additional transformers, and the plug can be customized according to the standards of the target market, making customs clearance completely worry-free. The operation is also very simple, it can automatically match the previous channel upon startup, without complex settings, and international customers can use it directly after taking it over. When paired with a wireless speaker, outdoor use does not require connecting to a power source to amplify the sound, making the use in exhibitions flexible and convenient.

Yingmi L7 Wireless Tour Guide System – Key Features & Advantages
| Feature | Yingmi L7 Advantage |
| Signal Stability | UHF 794-806MHz band; stable within 100m; penetrates obstacles in complex environments. |
| Sound Clarity | Digital noise reduction filters background noise (crowds, wind) for clear speech. |
| Battery Life | Over 8 hours continuous use; supports multi-slot charging case for group management. |
| Multi-Group Operation | 150 adjustable channels; anti-interference design for simultaneous team use. |
| Compliance | CE & RoHS certified; wide-voltage support; customizable plugs for global markets. |
| Comfort & Design | Lightweight (Tx: 48g, Rx: 16g); non-inferior earpiece fits either ear comfortably. |
| Customization | Logo printing, startup voice, pre-recorded multi-language explanations, scenario-based function optimization. |
| After-Sales Support | Lifetime warranty, global service network, multilingual remote support, fast repair/replacement. |
| Delivery Time | Regular orders: 7–15 working days; urgent orders can be dispatched same day. |
III. The Full Chain Solution of the Original Manufacturer
1.Technical and quality control are guaranteed
Yingmi has 4 automated SMT production lines. The core circuit boards are all produced by itself. From research and development to final products, each stage can be controlled by itself, ensuring more stable product quality. Each L7 device undergoes 5 strict tests. It must meet standards in terms of sound quality, battery life, shock resistance, and adaptability to various environments. The cumulative delivered devices from the first one to one million units have never had any accidents. The quality has been tested in the global market.
2.Customized services are flexible
As a source manufacturer, Yingmi can provide many personalized customization services. For example, printing the brand logo on the product appearance, customizing the startup voice, recording multilingual explanations, etc. No matter what special requirements the customer has, they can try to meet them. If it is a batch purchase, the equipment function modules can be optimized according to the specific usage scenarios to make the equipment more in line with actual usage needs.
3.Global after-sales and delivery are hassle-free
Yingmi provides lifetime warranty service (excluding shipping costs). If the equipment breaks down, it can be repaired through local cooperative outlets or replaced for free. There is no need for customers to travel more. There is also a multilingual after-sales team. After consultation, responses can be made within 90 seconds. Most technical problems can be solved remotely. For regular orders, delivery can be completed within 7-15 working days. For urgent orders, they can be dispatched on the same day. It will not delay the customer’s reception plan at all.
IV. Choose the source manufacturer to unlock high-performance and cost-effective cooperation
If foreign customers have the demand for wireless explainer devices, choosing the source manufacturer not only offers more competitive prices but also guarantees stable quality, flexible customization services, and reliable after-sales support. Yingmi’s 18 years of industry accumulation is not only a collection of technologies and production capacity but also understanding of the real needs of global customers.
You might as well learn more about Yingmi’s team tour guide devices. We can provide free product test videos and sample testing services. We can also customize exclusive solutions based on your specific usage scenarios (whether in scenic spots, enterprises, or exhibitions), allowing professional equipment to help you provide better reception services.
FAQ
1.Q: What makes Yingmi’s L7 device stand out in crowded or noisy environments like scenic areas?
A: The L7 utilizes UHF 794-806MHz high-frequency transmission and digital noise reduction technology, ensuring stable, clear audio without interference from crowds or wind, even over distances up to 100 meters.
2.Q: Is the L7 suitable for simultaneous use by multiple groups in places like factories or large exhibitions?
A: Yes. With 150 adjustable channels and anti-interference circuit design, the L7 allows multiple teams to operate nearby without signal crossover or disruption.
3.Q: Does Yingmi’s device comply with international export certifications?
A: Absolutely. The L7 is certified with CE and RoHS, supports global wide-voltage adaptation, and offers customizable plugs to ensure smooth customs clearance and use worldwide.
4.Q: How does Yingmi handle after-sales support for international customers?
A: Yingmi provides a lifetime warranty (excluding shipping costs), local repair partnerships, and a multilingual support team that typically responds within 90 seconds, with most issues resolvable remotely.
5.Q: Can the device be customized for specific branding or functional needs?
A: Yes. As an original manufacturer, Yingmi offers custom branding, startup voice recording, multi-language pre-loading, and even function module adjustments for bulk orders.