1) hearing-aid-compatible telephone [自]兼容助听电话2) Hearing-aids compatibility 助听器兼容3) hard-of-hearing amplifier 电话助听放大器4) data-voice compatibility 数话兼容5) compatible telephone 兼容话6) machine,auto answering 自动电话接听机补充资料:半自助旅游 半自助旅游是一半由旅行社安排,...
A hearing aid has a microphone, an amplifier and a receiver and at least one frequency-defining element in series with a switch connected to the amplifier. For telephone listening, the switch is closed and the frequency-defining element lowers the high frequencies in the incoming signal from the...
Special settings on hearing aids can be used for use on the telephone. Tamper-resistant battery doors are also available. Hearing aids can sometimes be compatible with smart phones and FM systems for school and at home. Frequently Asked Questions About Hearing Aids ( link to FAQ) Types of Hea...
Our product range includes systems for Flash Door Bell, Alarm Clock, Telephone Amplifier, TV sound amplification and Home Loop System etc. With ALD, you can enjoy the pleasure sound in every listening environment. WilliamSound Personal Pocketalker Ideal for elderly with mild to severe hearing loss...
5086464Telephone headset for the hearing impaired1992-02-04Groppe379/430 5058155Multipurpose headset amplifier1991-10-15Larsen379/442 4930156Telephone receiver transmitter device1990-05-29Norris379/388 4723293Hearing aid apparatus1988-02-02Harless381/68 ...
hearing aid,device used in some forms of deafness to amplify sound before it reaches the auditory organs. Modern hearing aids are electronic. They contain a tiny receiver and a transistor amplifier, and are usually battery powered. Some are small enough to fit into an arm of a pair of eye...
The basic components of a hearing aid are a microphone, amplifier, and speaker. Depending on the type of hearing aid, these parts may all be in one piece that goes inside the ear or over the ear or separate devices, with the microphone and amplifier behind the ear and the speaker inside...
The telephone can be used by the hard of hearing or by people with normal hearing by switching between two modes of operation. For the hard of hearing, it is necessary to amplify the speech signal. The telephone contains an amplifier circuit for the speech signal. This is powered by an ...
A hearing aid system comprising at least a first hearing aid, wherein the first hearing aid is configured to establish a communication link over the internet with a remote entity ba
More high-tech options for landlines include using a telephone amplifier, such as the Clarity Super Loud Phone Ringer, which increases the volume and allows you to adjust the tone. There are also many alert systems available that use flashing lights and/or vibrations to let you know that some...