In overseas schools and training institutions, many teachers and mentors often encounter such a problem: in the lecture hall, students at the back row are always secretly moving forward. Even though they have raised their voices very high, there are still people raising their hands and saying, “I didn’t hear you clearly.” I took students to a museum for a study tour. It was crowded and noisy on the weekend. I shouted at the top of my voice to tell the stories behind the cultural relics. As a result, the students either crowded around to listen or stood far away and couldn’t hear anything. After the study tour, I only remembered “seeing some old objects”, but couldn’t say exactly what I learned.
These minor issues in “sound transmission” may seem insignificant, but they actually lower classroom efficiency and distort the flavor of study Tours. As a company that has been engaged in the field of voice interpretation for 18 years, Yingmi Technology has always been thinking about how to help overseas educators solve these problems. The wireless audio guide we have launched is not merely a simple addition of an “amplification function”, but a solution tailored to the real needs of educational scenarios – whether it is interaction in the classroom or exploration during study Tours, it can ensure clear sound transmission and smoother communication, truly helping everyone transform “inefficient classrooms” into “efficient classrooms” and “cursory study Tours” into “rewarding study Tours”.
I.The wireless audio guide helps you solve the troubles in the classroom
There are various forms of classes overseas, ranging from large step-by-step classes with over a hundred students to small group discussions with just a dozen or so students. There are also outdoor teaching and language listening training. The problems of “unclear hearing and disorder” in the traditional model always devalue a good class. The wireless audio guide of Yingmi starts from the actual experience of teachers and students to sort out these problems.
1. Teachers no longer need to “shout to teach”; they can focus all their energy on imparting knowledge
Many overseas teachers have experienced hoarse voices after class – in university lecture halls, to ensure that the students in the last row can hear clearly, they have to raise their voices for every sentence. When teaching nature outdoors, the wind is blowing and there are sounds in the distance. The same instruction has to be repeated two or three times. After one class, my throat was dry and sore, and I didn’t even have the energy to communicate with the students. With the Eagle Mi wireless explanation device, this becomes simple: the teacher wears a small transmitter and each student takes a receiver. Whether standing in front of the podium or squatting down beside the students to explain problems, the voice can clearly reach each student’s ears.
2. Group discussions are no longer noisy, and multiple groups can “chat simultaneously without interfering”.
Overseas classrooms place great emphasis on group collaboration, such as practicing dialogues in English classes, conducting project discussions in science classes, and preparing arguments for debate competitions. However, there was always a headache when forming groups in the past: several groups would chat together, their voices would merge, and one group would say, “Our viewpoint is…” That group said, “The information we looked up is…” The noise made it impossible for people to concentrate, and the teacher couldn’t manage several groups at the same time – either two groups had to chat first and the others waited, or the teacher had to shout to maintain order.
The wireless audio guide of Yingmi has a “multi-channel” function, which can precisely solve this problem. We assign a “dedicated channel” to each group based on the number of students in the class. For instance, a class of 30 students is divided into 5 groups, with Group 1 using Channel 1 and Group 2 using Channel 2. Students switch their receivers to the channels of their own groups. When chatting, they can only hear the voices of their own groups, just like each group has an “independent small room”. In the previous English class, we practiced dialogue. Five groups were chatting at the same time. The teacher could even switch channels with a transmitter to “visit” each other. After listening to Group One finish chatting, the teacher could switch to Group two to check if there were any problems, without having to run around. Now, after one class, all five groups can fully discuss and each group can present their achievements. The class time is used more effectively than before.
3. Students can focus on their studies without being disturbed when listening to listening or enjoying music.
The listening practice in language classes, the appreciation in music classes, and watching teaching videos – these aspects that require “careful listening” are most afraid of environmental noise. For instance, in language classrooms overseas, cars pass by outside the window and students walk in the corridor. When the teacher plays listening materials, students always say, “I didn’t catch that sentence clearly just now,” and have to rewind it repeatedly. In music class, when listening to classical music, even the slightest noise can ruin the feeling. A student said, “I can’t tell the difference between a violin and a cello.”
The wireless audio guide of Yingmi can create a “private auditory space” for students: students wear headphones connected to a receiver to directly listen to the sounds from teachers or computers, and all the outside noise is blocked out. Just like in an English listening class, in the past, a dialogue had to be replayed two or three times. Now, students can clearly hear each word and even detect the intonation changes in the recording. When listening to Beethoven’s music in music class, students can distinguish the weight of the piano keys pressed and the details of the violin playing, and no longer miss the key points due to “not hearing clearly”. In this way, students can study more attentively, teachers don’t have to waste time repeatedly, and the classroom efficiency naturally improves.
4. Students with special needs are not embarrassed and can “learn on an equal footing”
Overseas education particularly emphasizes that “every student can keep up”. For instance, for students with hearing impairments, in the past, they either had to carry a conspicuous large loudspeaker to draw attention wherever they went, and the students themselves felt embarrassed. Either the teacher has to spend extra time on after-class tutoring, which not only wastes the teacher’s time but also may make students feel “different from others”.
When Yingmi was making the audio guide, it deliberately took into account the needs of these students: students with hearing impairments can wear small receivers, and the teacher’s voice can be directly transmitted to their ears. They no longer need to carry large equipment and can sit together with other students in class, and no one will pay special attention. If a student fails to understand a certain knowledge point, such as a geometry problem in mathematics, the teacher can open a separate “tutoring channel” outside the regular lecture channel and explain it to this student again. Other students will not be affected. This way, it not only protects the student’s self-esteem but also enables him to keep up with the progress without having to worry about “dropping out of class”.
II. Study Tours will no longer be “cursory”, ensuring that every trip brings real gains
Overseas schools and institutions all love to organize study Tours, such as visiting museums to see cultural relics, science and technology museums to see inventions, and natural scenic spots to recognize plants. However, traditional study Tours always have several “major problems” : too many people make it hard to hear clearly, students tend to disperse, and they can’t learn real things. The wireless audio guide of Yingmi is designed to address these pain points, ensuring that study Tours are both enjoyable and solid.
1.No matter how noisy the place is, knowledge can still “reach the ears”.
If you have been to a museum on a weekend, you will know that there are people everywhere. You have to lean close to your ear when they talk, let alone listen to the explanations. In the past, when leading study Tours, the instructor would either shout at the top of their voice or have the students form a circle. The students in the front could hear a few words clearly, while those behind could only see the instructor’s back. For instance, when talking about an ancient earthenware jar, the instructor would say, “This was used by ancient people to hold grains three thousand years ago. The patterns on it represent…” The students behind only heard “earthenware jars” and “three thousand years ago”, but didn’t catch anything else. When asked what they had learned at the end of the study tour, the students only said, “I saw an old jar.”
With the wireless audio guide from Yingmi, no matter how noisy it is, there’s no need to worry. The instructor spoke in a normal tone. Students wearing receivers can hear every word clearly no matter which corner of the exhibition hall they stand in. For example, when visiting the robot exhibition at the science and technology museum, the instructor said, “This robot can recognize gestures. It uses AI technology…” Even if students observe the robot closely beside it, they can still clearly hear the technical principles. In the natural scenic area, the instructor pointed to a tree in the distance and said, “This is a pine tree. Its leaves are like needles, which are used to reduce water evaporation…” Students don’t need to get close to them; they can understand by looking at the tree from a distance. In this way, study Tours are no longer just for fun, but for the real acquisition of knowledge points.
2. Students do not leave and their safety is guaranteed. Mentors do not have to “neglect one thing for another”
The most exhausting part of leading a study tour is “managing students” – the mentor has to impart knowledge, keep an eye on whether any students are lagging behind, and remind them of safety. Often, they can’t take care of everything. For instance, in the exhibition hall, the instructor was explaining the exhibits to the students in front of him and didn’t notice that some students behind him were attracted by something else and slowly walked away. When conducting outdoor study Tours and encountering steps or steep slopes, one has to stop to explain and shout, “Everyone, be careful of your steps,” which disrupts the pace of the lecture and makes it easy to miss key points.
The wireless audio guide of Yingmi has made “managing students” much easier. The instructor no longer needs to wave his hand to call out people. At any time, he can give instructions through the audio guide: When he notices that A certain exhibition area has become more crowded in the exhibition hall, he can say, “Everyone, leave Area A first and gather in Area B.” All the students can hear it and won’t crowd together. When walking on a slippery section of the road outdoors, a simple sentence like “Slow down and watch your steps” makes students know to be careful. Previously, when leading study Tours, the instructor had to count the number of students from time to time. Now, that’s not necessary. They just need to focus on imparting knowledge. Students won’t leave, and safety is guaranteed. Both the school and parents can rest assured.
3. Students can “wander freely” and their curiosity doesn’t have to be “suppressed”
There was another problem with my previous study Tours: students had to closely follow their instructors. Once they left, they couldn’t hear the explanations. They wanted to see more of the exhibits they were interested in and observe more of the plants by the roadside, but they were afraid of missing the content. Over time, students no longer dared to move freely and could only “follow the group”. The study tour became boring and their curiosity was suppressed.
The wireless audio guide of Yingmi gives students “freedom” – because the sound can travel far, students don’t have to surround the tutor and can freely wander within 100 meters: when they see a painting they like in the museum, they can stop to carefully examine the details while listening to the tutor say, “This painting is Impressionist. The painter is…” ; When you see butterflies in natural scenic spots, you can follow them for a while and even hear the instructor talk about the growth process of butterflies. Students can also ask questions proactively. As a result, they learn more actively and the study Tours become much more interesting.
Iii. Practical Advice for Overseas Educators: How to Select and Use Equipment?
Yingmi’s development of wireless audio guides for educational scenarios is not merely about creating a “usable device”, but rather aims to make it convenient and worthwhile for everyone to use. Here are a few practical suggestions for teachers and institutions overseas to help everyone make the right choices and use them well.
1.When choosing equipment, first look at “anti-interference and easy operation”.
In overseas schools, there are many wireless devices such as WiFi and projectors, and the places for study Tours are also chaotic. If these devices are prone to interference, it will surely be annoying to use them. Yingmi suggests giving priority to the 2.4G technology audio guide – it doesn’t require manual channel adjustment. It automatically pairs when picked up, as simple as connecting to a mobile phone’s WiFi. Even first-time users like teachers and students can learn it in just a few minutes. Moreover, it has strong anti-interference ability. Even when multiple devices are used simultaneously in schools or museums are crowded and noisy, the sound will not lag or produce any noise. The most fundamental thing is to hear clearly.
2. The functions should be “in line with educational scenarios”, and avoid choosing overly fancy ones
When choosing equipment, there is no need to pursue “the more functions, the better”. Instead, select the ones that are useful for education:
Multi-channel must be available: whether it is classroom grouping or research credit teams, multi-channel should ensure that they do not interfere with each other. At least 10 channels should be supported to handle classes and teams of different sizes.
Lightweight and long-lasting: Students will wear it for a whole day. If the device is too heavy, they will get tired. The audio guide of Yingmi weighs only a few dozen grams. You won’t feel it when you hang it around your neck or fasten it to your clothes. The battery life should be at least 8 hours. One charge is enough for a whole day’s use. There’s no need to look for a place to charge it in the middle. The accompanying charging aviation case is also convenient. It can both hold the equipment and charge it. Teachers don’t have to carry a lot of things when taking it out.
Easy to clean and hygienic: For the equipment shared by students, hygiene is very important. The audio guide of Yingmi is equipped with replaceable ear covers. After use, they can be removed for disinfection or replaced with new ones. There is no need to worry about cross-infection, and parents can rest assured.
3. Match as needed and integrate into daily teaching and study Tours
School procurement: Just provide by grade or class. For instance, each class can get one set (1 transmitter +30 receivers), which is sufficient for daily classes and outdoor teaching. If study Tours are organized frequently, two more sets should be provided to accommodate student teams of different sizes.
Procurement of study tour institutions: Make the audio guide a “standard configuration”. For instance, in the study tour promotion, say, “We are equipped with Yingmi wireless audio guides to ensure that every student can clearly understand the key points,” to let parents know that you attach great importance to quality. When using it, spend 5 minutes in advance teaching students how to turn on and off the device and adjust the channel. Then the study tour will go smoothly after it starts without wasting time.
What Yingmi wants to do: Not only to convey voices, but also to help educators do things well
Yingmi has been providing voice explanations for 18 years and has never forgotten to “help users solve real problems”. We make wireless audio guides not to sell the equipment to make a profit from the price difference, but to understand the difficulties faced by overseas educators – teachers don’t want to shout until their voices are hoarse, students don’t want to fall behind due to unclear hearing, and institutions don’t want study Tours to become a mere formality.
So our audio guide, from design to functionality, is all centered around these “not easy” aspects: teachers can teach easily, students can focus on learning, and research and study can be rewarding. In the future, we will continue to optimize, such as adding support for more minority languages to help teachers in overseas multilingual classes save a lot of effort. By adding AI-assisted functions, the explainer can help students remember key points and review them after class.
Yingmi looks forward to working with more overseas schools and training institutions to enhance classroom efficiency and solidify the quality of study Tours, so that every student can learn genuine knowledge and achieve real growth in a clear voice.