Standard Features
Ultra-thin.
Attractive design, small and light.
Less noise, fine fidelity and tone.
With N-H switch tone adjustment.
With ON/OFF switch.
Tested according to International Standard IEC118-7.
Max. Output: 125dB
Max. Sound Gain: >53dB
Total Harmonic Wave Distortion: <10%
Equivalent Input Noise Level : <30dB
Frequency Range: 350Hz~3800Hz
Voltage: 1.5V
Current:<4mA
Battery: AA
High Output.
Slim Body.
With N-H-O switch tone adjustment
Max Sound Output: 130dB
Sound Gain:>45dB
Total Harmonic Wave Distortion: F=1000Hz, <8%
Equivalent Input Noise Level : <28dB
Frequency Range: 300Hz~4000Hz
Current: <4mA
Max. Output: 135dB
Max. Sound Gain: >58dB
Frequency Range: 250Hz~4500Hz
With M-T-O switch tone adjustment.
Max. Output:131dB
Max. Sound Gain: >65dB
Equivalent Input Noise Level: <30dB
Frequency Range: 250Hz~3800Hz
Voltage:1.5V
With H-N-O switch tone adjustment.
Max. Output: 129dB
Max. Sound Gain: >55dB
Frequency Range: 350Hz~4500Hz
Microphone is fix on the line, much different from old pocket type hearing aid.
This is our new model and has got patent.
Max. Output:135dB
Total Harmonic Wave Distortion: f<1000Hz, <15%
Total Harmonic Wave Distortion: f>1000Hz, <10%
Current: <8mA
Fashion shape like Mp3 player.
Max. Output:130dB
Max. Sound Gain: >45dB
Total Harmonic Wave Distortion: f<1000Hz, <8%
Equivalent Input Noise Level : >28dB
With M-T-O and N-H switch tone adjustment.
Max Sound Output: 129dB
Sound Gain: >68dB
With volume adjustment switch.
With N-H switch.
Sound Gain: >45dB
Total Harmonic Wave Distortion: <5%
Frequency Range: 350----4500Hz
Input Noise: <30dB
Voltage: 3.7V
Current: 4mA