Low Noise Good Quality Hearing Aids Built-in Speaker

Medical equipments: low noise good quality hearing aids built-in speaker, cheap price:$ - $43.98 type: most popular; payment: paypal / credit card / bank transfer; warranty: 1 year.
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Specifications:

• For moderate to moderately severe hearing loss
• Built-in speaker, low noise, small distortion, good sound quality
• Automatic placement machine processing, non-interrupting welding, reliability and better.
• Internal circuit board tidy and beautiful
• Adjustable self-regulation catheter length to facilitate more comfortable to wear
• Maximum saturation sound pressure: 129dB +/- 4dB
• Full of sound gain: 50dB +/- 5dB
• Harmonic distortion: < 5%
• Frequency response: 450 ~ 3500 hz
• Equivalent Input Noise: < 30 dB
• Standard battery: AG13 button cell battery or A675
• Operating voltage: DC 1.5V
• Working Current: < 4 mA
• Size: 5.3 x 4.4 x 1.0 cm
• Approved: CE / FCC
• After sales service: 1 year warranty

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This item was added to our catalog on Monday 29 Nov, 2010.