1. This hearing aid is specially designed for the elderly or people with hearing problems, suitable for those people or patients with hearing loss.
2. Low power consumption, high fidelity, high-quality chip
3. With volume control function, the volume can be adjusted to meet your own needs and preferences.
4. Built-in battery power supply, smaller, simpler, more convenient, more powerful and more stable.
5. With digital circuit and automatic noise reduction technology, the sound is natural and brings you a comfortable experience.
6. Ergonomic earplug design, even if you wear it for a long time, you will not feel pain.

Parameter:
1. Maximum sound output: 122+/- 3dB
2. Sound gain: greater than or equal to 28dB+/- 2dB
3. Total harmonic distortion: less than or equal to 3%
4. Frequency range: 300-4800MHz
5. Input noise: less than or equal to 26dB
6. Voltage: DC 1.4V
7. Current: less than or equal to 1.2mA
8. Using A10 battery can be used for 5~7 days