Enhances natural hearing ability - not recommended for serious hearing loss
Air-conduction design
High and low tone control
Detailed introduction to Digital hearing aid VHP-702:
Digital Hearing Aids Behind The Ear/ Sound Amplifier /Sound Adjustable /Hearing Enhancer/Hearing Loss VHP-703
Digital volume control
Low Frequency adjustment
High Frequency adjustment
More comfortable
More practical
Performance parameter
|
Testing Item |
Indicator |
|
Max. saturation sound pressure level |
130dB±4dB |
|
Acoustic gain of full profile |
≥45dB±5dB |
|
Harmonic distortion |
F<1000Hz ≤15% F>1000Hz ≤10% |
|
Equivalent input noise |
≤ 32 dB |
|
Working volt |
1.4V |
|
Working current |
≤5mA |