hearing aids ( AVA-148 )

Products Name:	hearing aids ( AVA-148 )
Item No:	261278
Update time:	2005-6-9 16:42:00
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hearing aids ( AVA-148 ) Description

AVA-148 Technical Specification :

Maximum saturation sound pressure level (±5dB) 127
Maximum acoustic gain （±5dB） 50
Frequency response range （Hz） H：300-4000 L：250-3500
Power voltage （V） 1.5
Battery type PR03 AAA（5）
Frequency response adjustment
super-thin type;

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