• Model NO.：ST-238
• Principle：All Digital Hearing Aid
• Type：Ear Type
• Transport Package：Carton
• Trademark：Sumex
• Origin：China

Basic Info.

Model NO. ST-238 Principle All Digital Hearing Aid Type Ear Type Transport Package Carton Trademark Sumex Origin China

Product Description

Just adjust the volume, you can get the ideal sense of hearing .
Easy to operate and understand .

PRODUCT DESCRIPTION

Max Sound Output:                              131 ± 5dB

Sound Gain:                                         ≥55dB/58.9

Total Harmonic Wave Distortion:          ≤5%

Operation Current:                               ≤4mA

Frequency Range :                              200-3000Hz

Input Noise :                                         ≤32dB

Machine size:                                       45*20*68 mm

Voltage:                                                1.5V

Battery size:                                          AA

Battery capacity/Mah :                          2400

Operation current/mA :                         6.9

Working time/H:                                   348


PRODUCT FEATURE:

1. Big size body, exquisite design, obvious button, easy operation, could be used by everyone;

2. Pocket body hearing aid, can be easily wear in the belts, trouser pockets and so on, so that user can carry it to everywhere, is very stable;

3. Corresponding uncomfortable threshold properly adjust the maximum output, protect ear;

4. Contacting with a 2 pins ear line earphone, just like you listen a MP3 or others;

5. High power hearing amplifier with AA battery, which has a long using time, and the battery is easy to purchase;

6. 1-9 volume control, high output, high frequency, suitable for moderate and severe hearing loss;

7. Frequency adjustment function,  "I" is ON switch, "0"is OFF switch. "H1", high frequency, can help you reduce low frequency noise, "H2", more high frequency, can help you reduce low frequency noise than H1;