Z-26D1 Digital DSP In-ear TWS Invisible Hearing Aid Rechargeable Touch Control Sound Amplifier(Bl...

1. The hearing aid uses advanced digital DSP noise reduction technology to provide clear, high-quality sound
2. Touch control: long press for 5 seconds to turn on/off, long press for 2 seconds to switch modes, quick press to adjust volume
3. The hearing aid is designed with an induction system, which is easy to wear and adjust to meet personal hearing needs.
4. Rechargeable, no need to change batteries frequently.
5. Equipped with a charging box, it is easy to charge and carry, ensuring that your hearing aid is always available.
6. The in-ear design of the hearing aid is comfortable to wear and low-profile, providing an excellent listening experience without attracting attention from others.

Specifications:
1. Maximum sound output: less than or equal to 115+/-3dB
2. Sound gain: 29dB+/-3dB
3. Total harmonic distortion: greater than or equal to 3%
4. Frequency range: F1 less than or equal to 200Hz, F2 greater than or equal to 5000Hz
5. Input noise: less than or equal to 28dB
6. Voltage: DC 1.5V
7. Current: less than or equal to 0.9mA
8. Charging box: built-in 300mAH battery, fully charged in about 2~3 hours, can charge hearing aids about 4~5 times
9. Hearing aids: 25mAH, fully charged in about 2-3 hours. Normal working time is greater than or equal to 30 hours, and the total working time is less than or equal to 150 hours
10. Dimensions: 65 x 30 x 30mm