In daily life, the sound of teeth colliding can be clearly heard by us, but people around us cannot hear it. This is probably the nearest case of bone conduction technology around us. When you collide your teeth, you may hardly imagine that this sound transmission method will be applied by talented engineers to create the latest popular product-bone conduction headphones.
What are bone conduction headphones?
Bone conduction headphone is a type of headphone using bone conduction technology. Its biggest feature is that it uses bone conduction to transmit sound, uses human bones as the medium for transmitting sound, and directly transmits sound to the auditory nerve to form hearing.

This distinctive technical feature has also revolutionized the way it is worn. The wearing method of bone conduction headphones has changed from traditional in-ear wearing to hanging ear wearing. When wearing it, you only need to hang the earphone on the auricle and put the vibration unit close to the temple, and the whole ear is completely open. The change in the way of sound transmission and wearing has made bone conduction headphones another type of earphone, which is a huge upgrade compared to traditional earphones. Many ear doctors also highly recommend them, because they are better and healthier for ears.

How does bone conduction headphones work?

Bone conduction headphones are a new application of proven technology, but bone conduction has a long history, with its first applications dating back to the 18th century.
It is rumored that Beethoven, who was deaf, rubbed one end of a long rod into the piano. He put the other end in his mouth and kept it as close to the ear as possible. When playing, the long rod transmitted the sound to the jawbone and the cochlea of the inner ear, so that Beethoven could hear the sound of the piano. This was so important for Beethoven cause he regained his sense of hearing again and he can continue his music composition. This may be the earliest documented application of bone conduction technology.
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When the bone conduction headphone works, it converts the sound signal into mechanical vibration by the sound unit and drives the skull to vibrate at the same frequency, allowing the sound to reach the cochlea of the middle ear and inner ear. Finally, we can hear the sound. In the process of sound transmission, they directly bypass the ear canal and eardrum to reach the inner ear, taking a shortcut. Just because it takes a shortcut, it reduces the damage to the ear canal and eardrum, making it the healthiest headphone.
Most of us have been exposed to bone conduction in our daily life. Put your ears close to the ground, and you can hear the footsteps of “tap, tap, tap” through vibration; cover your ears, and you can still hear yourself mumbling, which is a natural phenomenon of bone conduction.

What are the disadvantages of bone conduction headphones?

While bone conduction headphones are popular, they’re not perfect. They also have some disadvantages, summed up in three:
Disadvantage 1 : sound quality
Because of the design characteristics of bone conduction headphones, their anti-interference effect is not ideal when wearing them for shopping, subway, car and other noisy environments. And the sound quality is not as good as traditional headphones, because they transmit sound through the skin, skull and then to the ear ossicles, so the degree of music reproduction is not as good as traditional in-ear headphones.
Disadvantage 2 : sound leakage

The sound is transmitted through the vibration of the vibrator, so part of the sound is also transmitted through the vibration of the air, and sound leakage cannot be completely avoided. It’s just that some headphones invest more research and design in reducing sound leakage, and solve most of the sound leakage problems. For example, the Wissonly Hi runner bone conduction headphones I own are excellent representatives among them.
Disadvantage 3 the price is slightly higher
The technology of bone conduction headphones is more complicated than that of traditional headphones, the materials are better than traditional headphones, and the manufacturing process is more complicated, which ultimately makes the price of them a little higher. But this year, with the rapid popularity of them, their prices have dropped significantly after the production has increased significantly.
Although bluetooth bone conduction earphones also have some shortcomings, with the progress of technology, these two shortcomings have been greatly improved. Some technologically leading brands, such as Wissonly and Aftershokz, have made great progress in improving sound quality and reducing sound leakage. Next, I will introduce some good headphones.

1. Wissonly Hi Runner bone conduction headphones

Reason for recommendation:
Wissonly bone conduction headphones are the first brand I started to contact. When they recommended it on the online crowdfunding platform, I noticed it, after saw that many people were recommending, and I bought it. This Hi runner I used for a few months, and the overall performance was better than I expected.
Some bone conduction headphones leak sound, and you know that I take privacy very seriously, so I’m very concerned about anti-sound-leakage technology. Wissonly Hi Runner does a very good job in the field. Its body is sealed, and through structural optimization and algorithm adjustment, its sound leakage is minimized. The official claim they can eliminate 90% of sound leakage. I do not have professional equipment to test, but I have tried and found that at 60%-70% volume, the sound is completely inaudible at a distance of 1.5 meters, which makes me very satisfied. I have actually compared it with other bone conduction headphones, and the Wissonly Hi Runner has currently the best sound leakage reduction solution in bone conduction headphones.
The Wissonly Hi Runner, is also particularly comfortable in the wearing experience. Because the material of the whole machine is high-tech hypoallergenic silicone, and it is coupled with the ergonomic design that conforms to the structure of the human ear, so that users will not bring any burden to the ear under long-term wear.
Sound quality as the core performance is undoubtedly worth mentioning. Wissonly Hi Runner uses a large-sized vibration unit, the sound range is wider, the sound is more three-dimensional and deeper, so the sound quality is undoubtedly very good. And it is also equipped with a Bluetooth 5.0 chip, the connection is more stable. And it will not be disconnected when used, which is a good experience. The Wissonly Hi Runner also comes with 32GB of built-in storage that can store 5,000 songs, so you can use it completely as an MP3 player to enjoy music without your phone when you go out for a run.

2. Philips A6606 bone conduction headphones

Reason for recommendation:
Philips A6606 adopts the latest generation of exterior design, which strengthens water resistance and slip resistance during sports for a more stable fit. The surface of its body uses skin-friendly materials, which will be more comfortable to wear. The body is also relatively light, and there is no sense of weight when wearing. It also has a night running indicator to ensure that the cyclist or vehicle behind you can see you during night running, thus you can avoid danger. From a configuration point of view, the configuration of this product may not be very high, but Philips’ quality is trustworthy. The price may be slightly expensive.

3.AfterShokz OPENRUN PRO bone conduction headphones

Reason for recommendation:
The light body weighs only 28g, it is like no weight in the hand, and it will not feel any weight when hanging on ears. Because of the characteristics of bone conduction headphones, there is no need to be stuffed into the ears or wrap the ears. And there will be no swelling or squeezing feeling when worn for a long time, which keeps the ears fresh and breathable. Its sound leakage reduction technology is also good, which can effectively suppress sound leakage and better protect personal privacy. It has a high-strength titanium alloy rear hanger. Before each pair of headphones leaves the factory, the official will carry out repeated tests to ensure that the quality passes. The body has high toughness, and it can be restored to its original shape when bent at will. You can toss it during the exercise, and don’t have to worry about the damage caused by bending of the headphones.

4.Earsopen peace tw-1 bone conduction headphones

Reason for recommendation:
It can’t be worn in the ear, and it won’t cause ear discomfort or damage eardrums for a long time. The wearing method of ear clip is different from other bone conduction headphones. This kind of wearing method is a little troublesome and can’t be worn with one hand, but it can make the headphones have good stability and won’t fall off during intense exercise. Its sound quality anti- sound-leakage are very well, and it can’t be heard within normal social distance.
Its disadvantage is that the ear-clip wearing method may make you feel uncomfortable after a long time.

5.Moing bone conduction headphones

Reason for recommendation:
It weighs only 30g, so it can be worn for a long time without burden. Streamlined sinking design is adopted, which fits the ear shape when wearing. Its body is made of memory alloy material, so you don’t have to worry about deformation after bending for many times. The overall configuration of Moing is good, Bluetooth 5.0. Titanium alloy frame, built-in power capacity of 200mAh, and it supports 6 hours of battery life.
Among the several bone conduction headphones recommended above, Wissonly and Aftershokz are my favorite brands. Compared with them, Wissonly is more cost-effective and worth buying.

Mack's Ultra Soft Foam Earplugs

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Mack's Ultra Soft Foam Earplugs are a popular choice for people who want to block out noise and get a good night's sleep. These earplugs are made of an ultra-soft foam material that is designed to fit comfortably in your ears, while also providing effective noise blocking.
One of the standout features of Mack's Ultra Soft Foam Earplugs is their effectiveness at blocking out sound. Whether you're trying to sleep in a noisy environment, or you need to focus on work in a loud office, these earplugs can help. The foam material creates a tight seal in your ear canal, which prevents sound waves from entering. This can be especially helpful if you live near a busy road, train tracks, or other loud areas.
Another benefit of Mack's Ultra Soft Foam Earplugs is their comfort level. The foam material is soft and pliable, which makes it easy to insert into your ears. Additionally, the earplugs are contoured to fit the shape of your ear canal, which helps to reduce pressure and discomfort. You can wear these earplugs for hours without experiencing any discomfort or irritation.
Mack's Ultra Soft Foam Earplugs are also very affordable, which makes them accessible to a wide range of people. Whether you're on a tight budget or just looking for a cost-effective solution to noise problems, these earplugs are a great option. They come in packs of 50 or 100, which means you'll have plenty of earplugs to last you for months.
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It's worth noting that Mack's Ultra Soft Foam Earplugs aren't just for sleeping. They can also be used in a variety of other scenarios. For example, if you're a musician or concert-goer, these earplugs can protect your ears from loud music. Similarly, if you work in construction or around heavy machinery, these earplugs can help to prevent hearing damage.
If you're concerned about hygiene, Mack's Ultra Soft Foam Earplugs are a good choice. They are disposable, which means you can use a new pair each time you need them. Additionally, the foam material is hypoallergenic and latex-free, which reduces the risk of allergic reactions. This is especially important if you have sensitive skin or allergies.
There are a few potential drawbacks to Mack's Ultra Soft Foam Earplugs that are worth mentioning. First, because they create a tight seal in your ear canal, some people may find them uncomfortable or unnatural feeling. Additionally, if you're someone who tends to toss and turn in your sleep, the earplugs may become dislodged during the night. Finally, some users have reported that the earplugs don't block out all noise completely, although this seems to be a minority of users.
Overall, Mack's Ultra Soft Foam Earplugs are an excellent option for anyone who needs to block out noise. They are effective, comfortable, and affordable, making them a great value for anyone on a budget. Whether you're trying to get a good night's sleep or you need to protect your ears in a noisy environment, these earplugs are worth considering.
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Improving your public speaking skills can be a valuable asset in many areas of life, whether it’s for professional presentations, public events, or personal growth. Here are some tips to help you enhance your public speaking abilities:
Improve your public speaking skills in India

1. Prepare and Practice: – Research your topic thoroughly to have a solid understanding of it. – Organize your speech into a clear and logical structure, including an introduction, main points, and a conclusion. – Practice your speech multiple times, both in front of a mirror and with a small audience if possible. This will help you become more comfortable with the material and improve your delivery.
   
2. Know your Audience: – Tailor your speech to the needs and interests of your specific audience. – Consider their background, knowledge level, and any potential cultural or demographic factors that might influence their understanding and engagement.
   
3. Use Body Language and Voice: – Maintain good posture, stand tall, and make eye contact with your audience. – Use gestures and facial expressions to emphasize key points and convey enthusiasm. – Vary your voice tone, volume, and speed to keep your audience engaged and interested.
   
4. Connect with Your Audience: – Begin your speech with a compelling opening that grabs their attention. – Use storytelling, humor, or personal anecdotes to establish a connection with the audience. – Engage the audience by asking rhetorical questions, encouraging participation, or incorporating interactive elements.
   
5. Visual Aids and Props: – Utilize visual aids, such as slides or props, to enhance your message and provide visual support. – Keep your visual aids simple, uncluttered, and visually appealing. – Use them as a complement to your speech, not as a replacement or distraction.
   
6. Manage Nervousness: – It’s natural to feel nervous before speaking in public. Practice deep breathing exercises, visualization techniques, or other relaxation methods to calm your nerves. – Channel your nervous energy into enthusiasm and passion for your topic. – Start with smaller speaking engagements and gradually work your way up to larger audiences to build confidence.
   
7. Engage in Feedback and Continuous Improvement: – Seek feedback from trusted friends, colleagues, or mentors who can provide constructive criticism. – Analyze your own recordings or videos of your speeches to identify areas for improvement. – Continuously work on refining your public speaking skills through practice, learning from others, and attending workshops or courses.
   

Remember, public speaking skills develop over time with practice and experience. By incorporating these tips into your preparation and delivery, you’ll become more confident and effective in front of an audience.