1. All models are available in Single (Monoural) as
well as Double (Binaural) Cord.
2. All silicon 4 B.J.T. (Bipolar Junction Transistor
) Circuitry used.
3. Fitted with 3rd Generation Electret Condenser
Microphone
4. Provision for Volume Control.
5. High & Low selection Switch provided.
6. Main Body of Hearing aid injection moulded out of
grade 'A' ABS (Acrylonitrile Butadine Styrene).
7. Operates on 1.5 Volt AA/R-6 size battery (Pencil
Cell).
PARAMETERS MILD MODERATE STRONG
Maximum Saturation
SoundPressure Level
(SSPL) 115dB 125dB 135dB
Average OSPL 90 105-114 dB 115-124 dB 125-134 dB
Full on acoustic
gain (min.) 45 dB 55 dB 65 dB
HF-average Full
on Gain (min.) 40 dB 50 dB 60 dB
| Specification | Value |
|---|---|
| Battery Current | less than 5 mA |
| Frequency range | 250 Hz-3150 Hz |
| Internal noise from the hearing aid in terms of equivalent input noise level | less than 30 dB SPL |
| Effect on the Full on Acoustic gain of variation of battery voltage | less than 10 dB |
| Total Harmonic Distortion | less than 7% |
| Effect of variation of battery voltage on distortion at | less than 10% |
Jaipur, Rajasthan
Jaipur, Rajasthan
