With a good hearing aid, it will cost you more than 10,000 yuan, but of course there are a lot of different kinds of hearing aids available, ranging from a few hundred dollars for the cheapest ones to tens of thousands of dollars for the most expensive ones.
Hearing aids are small amplifiers that amplify sounds that are otherwise inaudible, and then utilize the residual hearing of the hearing impaired person so that the sound can be sent to the auditory center of the brain, and feel the sound.
Mainly by the microphone, amplifier, headphones, power supply and volume control of five parts. Hearing aids are divided into air-conducted hearing aids and bone-conducted hearing aids according to the way of conduction; according to the way of use is categorized as box-type, eyeglasses-type, hairpin-type, back-of-the-ear-type, in-the-ear-type, ear-canal-type, and deep-ear-canal-type hearing aids.
Expanded information;
Precautions for using hearing aids
1, keep the hearing aid dry.
Avoid moisture, heat, and water immersion, and remove the hearing aid when washing your face, hair, swimming, and spraying hairspray, and protect it from the rain when it rains. In humid seasons and areas, as well as those who love to sweat, extra care should be taken to keep them dry and insist on the use of desiccants.
2. Avoid falls, collisions or shocks.
The above factors can lead to rupture of the hearing aid shell and damage to the internal components.
3. Use hearing aid batteries properly.
Hearing aids must use a special battery, the battery should be replaced in a timely manner after the battery is dead, such as battery power will affect the acoustic effect of hearing aids. When the hearing aid is not used for a long time, the battery should be taken out to avoid the battery liquid leakage caused by the damage of the hearing aid.
People's Daily News - poor him with 30,000 yuan of hearing aids