Use and maintenance of earbuds for 3M earbuds

1. Wearing foam earplugs: 1First, wash your hands;

2.When wearing your right ear, hold the earbud in your right hand and rub the earbud thin. 3.

Pinch the top of your ear with your left hand around your head and pull your right ear up and out to open the ear canal. 4.Wear the left ear in the same way.

5.After the earbuds are worn, listen to the steady-state noise, cover your ears with both hands, and then let go, if the sound change before and after is not obvious, it means that you are wearing well, if the sound changes before and after are obvious, it means that the earbuds have not been worn well, please wear them again. 6.

Removal: When removing the earbuds after use, gently rotate and pull the earbuds out.

2. Wearing of pre-formed, non-rubbing foam earplugs: 1First, wash your hands;

2.When wearing the right ear, hold the earbud in your right hand, pinch the top of your ear with your left hand after going around your head, and pull your right ear up and outward to open the ear canal. Once the ear canal is open, insert the tip of the earbud as deep as possible into the ear canal.

3 .Wear the left ear in the same way. 4.

After wearing the earbuds, listen to the steady-state noise, cover your ears with both hands, and then let go, if the sound change before and after is not obvious, it means that you are wearing well, if the sound change before and after is obvious, it means that the earbuds are not worn well, please wear them again. 5.Extraction:

When you take out the earbuds after use, gently rotate the earbuds and pull them out. The service life of earbuds is limited and needs to be replaced and maintained regularly, users should carefully read the product instruction manual, and maintain and replace them correctly as required:

1.Foam earplugs, non-rubbing foam earplugs, can not be washed, when the earbuds are dirty, damaged, should be discarded as a whole, replace the earbuds with new ones;

2.Preformed earbuds made of rubber, silicone and other materials can be washed and reused, and should be replaced when the earbuds are damaged or deformed; After the earbuds are washed, they should be placed in a ventilated place to dry naturally, and should not be exposed to the sun;

3.Under no circumstances can the earbuds be modified without authorization;

4.Before each use, you should check if the earbuds are performing well.

It depends on the various materials of 3M earbuds. If the earbuds are dirty or damaged, they should be discarded as a whole and replaced with new ones; Pre-formed earplugs made of rubber, silicone and other materials are washable and reusable. After the earbuds are cleaned, they should be placed in a ventilated place to dry naturally, and should not be exposed to the sun, but if the earbuds are damaged, they should be considered to replace them, because the 3m earbuds in this store are not very expensive, and when the earbuds are damaged, they will be replaced.

Suggestion: Before each use, check whether the performance of the earbuds is good, as well as its material, etc., it is recommended to read and understand the instruction manual before use, and understand the scope of application, wearing method and use method of the product.

1. Take out the earbuds and rub them together with your index finger and thumb (the thinner, the better);

2. With the other hand, lift the ear to be tucked in upwards and outwards (this is very important) and hold it, then put the round end of the thin earbud towards the ear and stuff it into it;

3. Hold the earbuds with your hands until the earbuds are fully inflated and shaped in the ears (about 30 seconds).

One way to ensure the effectiveness of earbuds is to wear noise-cancelling earplugs in close contact with the person's outer ear so that sound does not enter the middle and inner ears through the gap between the earbuds and the outer ear. Since the shape of each person's outer ear is different, it is not possible to achieve the above requirements by making earbuds of the same size with common materials. The way to solve this problem is to make earbuds with elastic materials, so that the earbuds have a certain deformation ability and adapt to the shape of different people's outer ears.

The elasticity of the material used to make this earbud must be appropriate, the elasticity is too large, and the earbud compresses the external ear canal when it expands, which can cause discomfort such as ear swelling and earache; If the elasticity is too small, it cannot be in close contact with the external auditory canal, and the sound insulation effect is reduced. A material with this property has been found and earplugs have been made from it, which are polyvinyl chloride (PVC) foam earplugs with slow rebound properties. The slow-rebound earbuds will slowly expand after being rolled into thin strips by hand and gradually return to their original shape.

After a few minutes of inserting the earbuds into the ear canal, the earbuds are in close contact with the ear canal. Wear these noise-cancelling earplugs by lifting the pinna of the ear to straighten the curved ear canal, and then inserting the earbuds into thin strips. The way to identify the quality of these earbuds is to observe their rebound speed, and the quality with a long rebound time is better.

1) Please read and understand the instruction manual before use to understand the scope of application, wearing method and usage method of the product;

2) When there is a danger of hooking and winding, it is forbidden to use earbuds with connecting ropes; Wu Liang.

3) Hearing loss or injury may result from incorrect use or failure to wear hearing protectors during the duration of noise exposure;

4) If there is fluid coming out of your ear canal or a hole in your eardrum, consult your doctor before wearing earplugs;

5) Please do not wear preformed and non-rubbing foam earplugs while sleeping;

6) Store the earbuds out of reach of infants or toddlers.

In general, there are six precautions: 1. Please read and understand the instruction manual before use, and understand the scope of application, wearing method and use method of the product; 2) When there is a danger of hooking and winding, it is forbidden to use earbuds with connecting ropes; 3) Hearing loss or injury may result from incorrect use or failure to wear hearing protectors during the duration of noise exposure; 4) If there is fluid coming out of your ear canal or a hole in your eardrum, consult your doctor before wearing earplugs; 5. Please do not wear pre-formed and non-rubbing foam earplugs while sleeping; 6Please store the earbuds out of the reach of infants or toddlers.

Before use, read the instruction manual to understand the scope of application of the product, wearing method and how to use, when there is a danger of hooking and winding, it is forbidden to use earbuds with connecting cords, and using the hearing protector incorrectly or not wearing the hearing protector all the time during the noise exposure may cause hearing loss or injury.

3M Notes:

1. Since the earbuds take a fast time to recover their elasticity, users should make sure that they are finely rubbed before being plugged into the ears, otherwise the best effect cannot be achieved;

2. Remember to pull the ears upwards and outwards before plugging them into the ears, and the earbuds can only play the best effect after they are inflated;

3. Please keep your hands clean during operation;

4. Take it out slightly, slowly, and rotate to pull it out, and don't use too much force;

5. Replace the earbuds in time.

There are 2 types of soundproof earbuds, 1. Foaming material Foaming material (non-washable) Service cycle: about 2 weeks 2. Silicone material Silicone material (washable) Use cycle: about one year 2: Advantages and disadvantages of soundproof earbuds.

1. Foam earbuds: good comfort and sound insulation, suitable for sleeping, 2. Silicone earbuds: washable, long service life, cost-effective, can also be used as swimming earbuds!

Foam earplugs are recommended for general sleep, because comfort is more important during sleep.