This hearing aids for seniors are made of the latest materials. The shell is nano-coated and sweat-proof; the material domes of different sizes are suitable for everyone. And it equipped with cleaning tools to extend the service life. Bluetooth 5.0 can help you to connect with your phone so that you can listen to music or see movies on your equipment. Two sound tube can be adjusted to fit your right or left ear. The newly upgraded smart chip, the noise reduction is 30% higher than usual. It sounds more natural and provides you with a wonderful experience. Suitable for all kinds of people with poor hearing. Our Vinmall hearing aids allows you to conveniently answer calls while studying, walking, driving, doing sports, etc. Feel zero gravity and wonât hurt your ear after long time using. The sound amplifier is fully charged for about 2 to 4 hours, and it can be used for about 20 hours. Put it in a small box, which is easy to carry and go out. If you have any questions about our hearing aids, feel free to contact us. Our professional customer service team will provide you with within 24 hours.