Invisible In-Ear Hearing Aid Smart Noise Reduction Sound Amplifier For Elderly

1. Equipped with soft double-layer silicone earplugs, they fit comfortably into the ear canal and enhance the sound insulation effect
2. Anti-coughing design, 15-second delay startup technology, effectively suppresses sharp coughing during wearing, providing better ear protection
3. Supports 4 volume level adjustment, suitable for different hearing needs and scenarios
4. Intelligent memory function, automatically saves the user's volume settings, eliminating the need for repeated adjustments during next use
5. 60% raised buttons, with clear touch sensation, easy for the elderly to operate
6. Type-C interface fast charging, charging time is approximately 1.2 hours, time-saving and convenient
7. Low power consumption and long battery life, single charge can last for about 12 hours; when paired with the charging case, it can be charged 4-5 times, with a total battery life of up to 60 hours
8. Left and right ear separation design, allowing for more freedom of wearing and more flexible adaptation
9. Each ear weighs only 1.9g, lightweight and comfortable to wear, suitable for all-day comfortable use
10. Small ear-in style design, concealed and unobtrusive when worn, ensuring clear sound perception

Parameters
1. Maximum OSPL90: less than or equal to 112.7 dB
2. HFA OSPL90: less than or equal to 110 dB
3. Full gain: 27.6 dB ± 5 dB
4. Frequency response: 364Hz - 5614Hz
5. Equivalent input noise: less than or equal to 22.5 dB
6. Total harmonic distortion (500Hz): less than or equal to 1.20%
7. Total harmonic distortion (800Hz): less than or equal to 0.90%
8. Total harmonic distortion (1600Hz): less than or equal to 0.40%
9. Earphone battery capacity: 15mAh
10. Charging compartment battery capacity: 300mAh
12. Charging interface: Type-C
13. Charging compartment size: about 6.6 x 4.8 cm
14. Earphone size: height about 2 cm