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Digital hearing aid 638

Offer to Sell
Digital hearing aid 638
Specification:
Digital circuitry
Mini BTE design
Left or right ear adjustable
Detachable receiver
Digital Volume control
High or low tone control
Product size: 55x35x10mm
Weight: 7g
Testing Item Indicator
Max. saturation sound pressure level 130dB±4dB
Rated Operational Voltage 1.4V
Rated Operational Current ≤5mA
Frequency response More than 450-3500 Hz
Equivalent input noise ≤32dB
Harmonic distortion f＜1000Hz ≤15% f≥1000Hz ≤10%
Acoustic gain of full profile F=1600Hz, 58±5dB
Contact person: Ms. Catherine
Position: Sales Assistant
Mobi: 18825149336
Phone: 86-758-2699808 - Fax: 86-758-2699978
Address: Guicheng Town, Dinghu District, Zhaoqing City, Guangdong Province, China
Country: China
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