Noise-reducing speaker, making tour guide explanations more composed

 News     |     April 28, 2026

The frequent occurrence of noise chaos hinders the rhythm and quality of reception

 
In most public receptions, tourism group tours, and factory visits nowadays, there are naturally various complex noise interferences. Outdoor scenic areas have continuous wind sounds, tourists' noisy sounds, and traffic sounds from surrounding commercial districts; indoor exhibition halls have people's walking and talking sounds, equipment ventilation background noise; industrial factories even have additional mechanical operation noises. Conventional voice transmission equipment simply cannot withstand such complex sound field tests. Ordinary explanation equipment without professional noise reduction algorithms will only simultaneously amplify environmental noise, making the speaker's voice blurry and indistinct, and the people in the back row cannot hear clearly. At the same time, the old equipment has a small number of channels, and when multiple teams are working simultaneously, it is prone to interference and frequency collision, interrupting the explanation rhythm. Long-term shouting operations cause significant vocal damage to the tour guide, and their mentality is also likely to become agitated, directly undermining the overall service reputation and affecting the external professional image of venues, scenic areas, and enterprises.
 

Hardcore noise-reducing technological support, restoring pure human voice sound field in situ

 
To get rid of noise troubles, without having to shout forcefully, and still have a clear sound transmission, the core lies in the professional noise reduction ability and stable signal configuration of the equipment. Yingmi has its own standardized industrial factory and a full-chain self-developed and self-produced production line, controlling every hardware detail. Yingmi L7 team speaker focuses on strong noise reduction and strong anti-interference core advantages, suitable for high-intensity use in all time and all scenarios, firmly holding a pure explanation sound field.
 

Multi-band anti-interference filtering, isolating noise and leaving only clear human voices

 
The L7 noise-reducing speaker is equipped with a dual-band selectable carrier design, supporting flexible switching between 2.4G and UHF 663-694 MHz mainstream frequency bands, and has up to 150 adjustable channels. On-site, it can be switched to avoid interference with a single click. The equipment has a professional noise reduction microphone chip, which can dynamically capture the speaker's voice and simultaneously filter out low-frequency rumbling and high-frequency noisy sounds, not adding any redundant background noise, and only clearly and accurately reproduce the original sound quality. Even in high-density tourist areas, open outdoor venues, or mechanized production factories, it can isolate irrelevant noises, and the human voice is clear, transparent, and not irritating, allowing the audience in the front and back rows to clearly hear. Without the need to raise the volume forcefully, it significantly reduces the burden on the voice.
 Strong signal Tour Guide System

Stable long-distance transmission, no sound loss even with a long team movement line

 
In many outdoor long-distance tour guiding and large-scale factory tour scenarios, the team movement line is long, and the personnel are scattered. Ordinary explanation devices often lose connection, become sluggish, and the noise increases when the distance is far. The L7 has an effective communication range of up to 200 meters. The signal is continuous without breaks and without attenuation, regardless of how long the team is or how scattered the movement line is. The front and rear rows can receive the same sound quality. There will be no situation where the front is clear but the back is blurry. The body power consumption is optimized, and it only takes 2.5 hours to fully charge and can work stably for 6 to 8 hours continuously. It is sufficient for multiple sessions of tours and alternating receptions throughout the day. There is no need to stop and recharge halfway, and it does not disrupt the established explanation rhythm. The tour guide can control the team rhythm throughout the process calmly.
 

Flexible adaptation for all scenarios, meeting the practical needs of various frontline receptions

 

Tour guiding in scenic areas outdoors, easily coping with noisy tourist crowds during peak seasons


During holidays, the tourist crowds in scenic areas explode, and the environment is noisy. This is a frequent and urgent need for noise-reducing explanations. The device is lightweight and comfortable to wear, with a lightweight design for the receiving end. It provides a comfortable fit that does not press or muffle the ears during long-term wear, and tourists will not experience any discomfort throughout the entire wearing process. The multi-channel independent zone operation ensures that multiple tour guides in the same area leading tours will not interfere with each other's sound fields, which do not disturb each other. It also comes with a Bluetooth expansion interface, allowing for quick external connection of translation peripherals, meeting the needs of multi-language reception. This helps to enhance the travel experience for tourists in a one-stop manner, eliminating the need for tour guides to shout continuously and allowing them to focus on providing itinerary explanations and service connections.
 

For government and enterprise factory business receptions, the quiet and standardized environment highlights professional standards.

 
For government unit research visits, large enterprise factory tours, and high-end exhibition business investigations, there are extremely high requirements for the privacy of explanations and the purity of sound fields. There must be no noise interference and no information leakage issues. The L7 not only has powerful noise reduction capabilities but also has signal encryption transmission capabilities. The sound field is independently enclosed, preventing unauthorized personnel from eavesdropping. It meets the standards for confidential business receptions. At the same time, it supports seamless rotation among three interpreters as the main speakers, and multiple people can relay explanations in segments without needing to change equipment or restart and debug. The connection is natural and smooth throughout the entire reception process, ensuring a decent and standardized environment, fully demonstrating the professional reception standards of the unit.
 Long-distance Tour Guide System

For multi-field collaboration in study tours and exhibitions, batch deployment is efficient and worry-free.

 
For study tours, exchanges, large-scale exhibitions, and cultural venue joint activities, multiple batches and large-scale simultaneous receptions are often required. The L7 comes with standardized complete sets, which can be customized to 20 to 500 people in full specifications. It comes with a dedicated charging and storage box, allowing for centralized charging, centralized storage, and centralized management. It is convenient for counting and taking out, and does not occupy space. The equipment operation is extremely simple. It automatically pairs upon startup, without the need for complex debugging. Newcomers can quickly master it, significantly reducing the amount of on-site preparation work, and ensuring the smooth progress of multiple events. The long-term use is convenient and cost-effective.
 
FAQ
 
Q1: In a factory workshop with strong noise, is the noise reduction effect of the L7 noise reduction headset sufficient?
A1: It is completely sufficient. The equipment is equipped with dual-band anti-interference design + dynamic noise reduction chip, which can effectively filter various noises such as mechanical roaring and crowd noise, and stably retain the pure voice of the narrator. It can be clearly heard even in complex industrial environments.
 
Q2: Will multiple tour guides simultaneously leading tours in a scenic area cause interference with each other's audio?
A2: There will be no interference problem. The L7 is equipped with 150 adjustable independent channels. On-site, you can quickly switch to different frequency bands. Multiple teams can use it simultaneously in close proximity, and the sound field will not interfere with each other, nor will it affect the rhythm of each tour guide.
 
Q3: Is the battery life of the device sufficient for multiple sessions of tour guiding throughout the day? Is charging troublesome?
A3: The battery life is fully compatible with the requirements of all-day work. When fully charged, it can be used continuously for 6 to 8 hours. It can be fully charged in 2.5 hours. The batch packaging comes with a dedicated charging box, and centralized charging management is provided, saving time, effort, and avoiding complexity.
 
Q4: Can the appearance and functions be customized according to the needs of venues and enterprises?
A4: It supports full-process OEM/ODM customization. You can customize the body logo, exclusive frequency band, battery capacity, and supporting functions as needed, to meet the exclusive usage requirements of various scenarios such as scenic spots, government and enterprises, and exhibition halls.
 
Q5: Is the post-sale service troublesome, and what is the warranty policy like?
A5: The post-sale service is convenient and worry-free. The entire machine enjoys official warranty. Online technical customer service responds within 2 hours at all times. It supports remote fault diagnosis, on-site fast repair, long-term supply of original spare parts, and no need to worry about connecting.