Equal To Siemens Digital BTE Behind The Ear Hearing Aid Severe Loss With Telecoil And 2 Channel WDRC
●Fully digital signal processing
●Adjustable Volume button
●Trimmer MOP/NH Switcher
● 2 channels WDRC
● Microphone Noise Reduction
● Low frequency gain adjust (H-trimmer)
●Overall output adjustment (P-trimmer)
● Low battery warning indicator
●3 program mode(+T-coil)
●Zinc Air battery A13
Analog, Digital hearing aids, Rechargeable hearing aid, ear hearing amplifier, ITE,CTC models available
Programme Digital BTE Hearing Aid
Max OSPL 90(dB)
HF Average OSPL 90(dB)
200Hz to 5000Hz
2(MPO & H)
500Hz : 2.0%
800Hz : 1.5%
1600Hz : 1.3%
Less than < 1.0mA
Zinc Air A13,working last for 1 month
Equivalent input Noise Level
< 25 dB SPL
Induction coil Sensitivity (at 10mA /M)
85 dB minimum
Normal/Noise reduction mode/telecoil
NH(Noise reduction to get less noise)
P(Adjust to get the better sound )
For hearing loss
What is the Presbycusis?
Presbycusis (also spelled presbyacusis, from Greek presbys “old” + akousis “hearing”), or age-relatedhearing loss, is the cumulative effect of aging on hearing. It is a progressive and irreversible bilateral symmetrical age-related sensorineural hearing loss resulting from degeneration of the cochlea or associated structures of the inner ear or auditory nerves. The hearing loss is most marked at higher frequencies. Hearing loss that accumulates with age but is caused by factors other than normal aging (nosocusis and sociocusis) is not presbycusis, although differentiating the individual effects of multiple causes of hearing loss can be difficult.
The cause of presbycusis is a combination of genetics, cumulative environmental exposures and pathophysiological changes related to aging. At present there are no preventative measures known; treatment is by hearing aid or surgical implant.
Presbycusis is the most common cause of hearing loss, afflicting one out of three persons by age 65, and one out of two by age 75. Presbycusis is the second most common illness next to arthritis in aged people.
Telecoils or T-coils (from "Telephone Coils") are small devices installed in hearing aids or cochlear implants. An Audio induction loop generates an electromagnetic field that can be detected by T-coils, allowing audio sources to be directly connected to a hearing aid. The T-coil is intended to help the wearer filter out background noise. They can be used with telephones, FM systems (with neck loops), and induction loop systems (also called "hearing loops") that transmit sound to hearing aids from public address systems and TVs. In the UK and the Nordic countries, hearing loops are widely used in churches, shops, railway stations, and other public places. In the U.S.A., telecoils and hearing loops are gradually becoming more common. Audio induction loops, telecoils and hearing loops are gradually becoming more common also in Slovenia.
A T-coil consists of a metal core (or rod) around which ultra-fine wire is coiled. T-coils are also called induction coils because when the coil is placed in a magnetic field, an alternating electric current is induced in the wire (Ross, 2002b; Ross, 2004). The T-coil detects magnetic energy and transduces (converts) it to electrical energy. In the United States, the Telecommunications Industry Association's TIA-1083 standard, specifies how analog handsets can interact with telecoil devices, to ensure the optimal performance.
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