Ultra-Compact In-Ear Invisible Hearing Amplifier With Charging Case For Elderly(Red Blue+Black Case)

1. Wireless invisible hearing aid designed specifically for people with mild to moderate hearing loss, balancing discretion with clear sound quality, comfortable to wear and easy to operate.
2. Smart Magnetic On/Off: Automatically powers off when placed into the magnetic charging case; ready to use immediately upon removal, eliminating manual operation.
3. Digital Noise Reduction Chip: Effectively reduces environmental noise, enhances speech by up to 32 dB, and ensures stable, natural sound transmission.
4. Knob Tuning + Clear Pull String for Insertion/Removal: Includes an adjustment tool for fine-tuning volume; clear pull string design facilitates quick device removal.
5. Magnetic Charging Case: Provides up to 80 hours of battery life. When fully charged, the hearing aid battery life exceeds 20 hours. Charging time is 2-3 hours.
6. No Tubes or Wires, Comfortable Fit: No external tubes or cables, does not interfere with glasses, masks, or hairstyles; includes multiple sizes of silicone ear tips.
7. Target User Information: Suitable for mild to moderate hearing loss; not recommended for severe or profound hearing loss.

Parameters:
1. Max OSPL90: 110 +/-4 dB
2. High Frequency Avg OSPL90: 106 +/-2 dB
3. Full-on Gain: 34 +/-2 dB
4. Average Gain: 28 +/-2 dB
5. Equivalent Input Noise: 22 +/-2 dB
6. Frequency Bandwidth: F1 less than or equal to 500Hz, F2 less than or equal to 5000Hz
7. Distortion: Less than or equal to 3%

Lab test data are for reference only; actual products may have variations.