Wireless Invisible Hearing Aid With Digital Display Charging Case & Touch Control, Red Blue+White Case, Red Blue+Black Case, Skin Color+Black Case, Skin Color +White Case, Black+Black, White+White, White+Black Case

1. Wireless Invisible Hearing Aids: Wireless rechargeable hearing devices integrating concealment, comfort, and intelligent control, specifically designed for users seeking high-fidelity sound quality and convenient experience.
2. Smart Digital Display Charging Case: Real-time display of remaining battery level to eliminate charging worries and easily plan usage time.
3. Touch Control Operation: Convenient adjustments.
4. Universal Design: Fits either ear (non-L/R specific), offering flexible wearing options.
5. High-Sensitivity Balanced Armature Driver Unit: Combined with digital noise reduction technology to enhance speech clarity and suppress ambient noise.
6. Ultra-Lightweight: Only 3g per ear, conforming to the ear canal contour for discreet and pressure-free wear.
7. High-Capacity Charging Case: 2-hour charging time provides 35 hours of battery life, with 4-5 full recharges possible.
8. Piano Lacquer Finish: Smooth and refined housing, combining aesthetics with practicality.

Specifications:
1. Maximum OSPL90: less than or equal to 115dB +/-5dB
2. High-Frequency Average OSPL90: less than or equal to 110dB +/-5dB
3. Full-on Gain: less than or equal to 30dB +/-5dB
4. Frequency Response Range (not less than): 400Hz – 5000Hz
5. Total Harmonic Distortion: 7% +/-3%
6. Equivalent Input Noise Level: less than or equal to 28dB +/-5dB

Laboratory test data is for reference only; actual products may vary.