Battery Regulations Articles & Analysis
2 articles found
Specification of JH-238 Pocket Body Worn Hearing Aid Hearing Amplifier Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥50dB/51.5 Battery size AA Total Harmonic ≤5% Battery capacity/Mah 2400 Wave Distortion Operation ≤4mA Operation current/mA 6.9 Current Frequency Range 500-3500Hz Working time/H 348 Input Noise ≤32dB Certification FDA Machine size/cm 4*1.7*6.5 ...
Specification of JH-233 Body Worn Pocket Ear Sound Amplifier Hearing Aid Max Sound Output 131 ± 5dB Voltage 1.5V Sound Gain ≥55dB/58.9 Battery size AA Total Harmonic ≤5% Battery capacity/Mah 2400 Wave Distortion Operation Current ≤4mA Operation current/mA 6.9 Frequency Range 200-3000Hz Working time/H 348 Input Noise ≤32dB Certification FDA Machine size/cm 4.5*2*6.8 ...