EN-T201A Digital Machine Elderly Charging Hearing Aid Sound Amplifier(Metal Blue)

1. OSPL90: less than or equal to132dB2. High frequency average OSPL90:120dB3. Full gear sound gain: 35dB±5dB4. Equivalent input noise: less than or equal to29dB5. Working current: 10mA6. Frequency range (not narrower than) : 300Hz to 4500Hz7. Battery capacity: 30mah8. Battery type: Rechargeable polymer lithium-ion battery 3.7V9. Ergonomic design ear hook, comfortable to wear, ear will not hurt10. Adopt digital signal processing technology, adapt to a variety of auditory environment, present natural sound quality, let the sound clear transmission11. One key noise reduction technology, easy to feel the natural sound12. Three modes can be switched freely13. USB charging design, rechargeable, blue light when charging, green light when fully charged14. Cycle charging, built-in lithium polymer battery, durable endurance, long service time15. One-button switch/mode switch. Long press is switch on and off, short press is mode switch16. Small body, hidden in the back of the ear, easy to wear, easy to take off17. Intelligent noise reduction processing chip, double noise reduction, analysis and remove all kinds of noise18. Anti - sweat and anti - fall, durable19. Size: 3.48x1.7x0.85cm20. Weight: 4g