Product Description
| Toys Type | Led Speaker |
| Features: | Card, radio, voice prompt, call function |
| Product size: | |
| Weight： | |
| Color: | Blue, Black, Rose Red, White, Yellow r |
| Packaging: | Printing boxes, With gift box |
| Interface Type: | USB |
| Custom Service: | Support custom logo and packaging |
| Frequency Range: | 40Hz-20KHz |
| Battery Capacity: | 4000 |
| Signal-to-noise ratio: | ≥75dB |
| Feature: |
Earache in head wear
the reason
This symptom is normal!
After a person puts on the earphone, the channel opening of the outer ear is tightly plugged by the earphone and is almost in a blocked state. The high-volume audio sound pressure directly enters the ear and is concentrated on the thin eardrum. There is no room for buffering, and the auditory nerve is blocked. Excessive stimulation can easily cause hearing fatigue. So the symptoms of ear pain after wearing headphones for a long time appear!
Whether wearing earphones can cause hearing impairment is controversial in the current medical research, because the length of time and the volume of each person are inconsistent, and it is impossible to make an effective observation and judgment. But one thing worthy of affirmation is: If you wear headphones for a long time to listen to music without paying attention to ear maintenance, it will affect your hearing. Compared with a loudspeaker, the vibrating plate of the earphone is closer to the eardrum, although it is more pleasant, it is more direct damage to the ear. Although almost all earphone designs have adopted “open” earphones to reduce hearing damage, long-term use can still cause damage, which may cause poor blood circulation, tinnitus, inner ear hair cell necrosis, and even auditory nerve damage, especially for some people. Turning up the volume of the music in order to offset the external noise is even worse.
note
Frequent wearing of earphones will damage the ears. Generally speaking, the following principles should be paid attention to when using earphones:
1. Don’t wear headphones for a long time
2. Don’t turn on the volume too much. If someone from a meter away can’t hear you clearly, you should lower the headset volume.
3. Choose headphones that are comfortable to wear.
4. The earphone should be of good quality, low noise, and the volume can be adjusted.
5.Don’t listen to things with headphones for a long time. Let your ears rest every half an hour. The maximum time is no more than three hours a day, the less the better.
6. Do not listen while sleeping. Due to the influence of sleeping posture, the pillow puts pressure on the earplugs, which causes physical damage to the eardrum.
7.It is best to use over-ear headphones, because this kind of earphones is less harmful to the ears than embedded headphones.
In addition, earbud earphones are closer to the eardrum than earmuff earphones, and stimulate the eardrum more directly, which may have a greater impact on the ears.
