タイトルまたは説明

KF***9C USB Rechargeable Behind The Ear Hearing Aid

Feature:
1. Save money: Don't need to buy the batteries for hearing aid, Batteries.
2. More Convenient: Use a USB interface, Can connect the power bank and computer, Rechargeable anytime and anywhere,
3. Latest IC circuit system: The sound is more clear, The noise is smaller,
4. Sound gain: The sound crest volume is bigger, More than *0dB,
5. Worldwide universal USB cable and Adapter: ******0V, Include Asia, Europe, Middle East, Africa, America, etc.
Technical Parameter:

1.  Max. saturated sound pressure:  ≤**0*5 DB

2.  High-frequency average:  **6±5 DB

3.  Max.voice gain: *3±5 DB

4.  Equivalent noise level: ≤*2 DB

5.  Total harmonic wave distortion: ≤*0%

6.  Frequency response range: *******0 HZ

7.  Battery capacity: *0mA battery is a rechargeable battery

8.  Continuous working time:≤*5H

9.  The speaker impedance: **0 ohm

*0. Working voltage:1.2V 

*1. Working current:≤3 mA

*2. Attachment:1*host,6*earplug,1*adapter（Europe or US）,1*data line,1*charging base,1*cleaning brush,1*manual