Hearing Aids for Seniors, Upgraded 4-channel Rechargeable Digital Hearing Amplifier for Adults with Charging Box, Invisible Personal Sound Hearing Aids with Intelligent Noise Cancellationn, Gift for Parents

【Durable Battery Life & HD Digital Display】The rechargeable hearing aids achieve 35 hours working time by only 2-3 hours charging with a built-in high-capacity rechargeable battery that can be recharged up to five times for ear bud hearing aids. You can see the remaining battery at a glance with the high-definition digital display. 【Invisible & Comfortable】This personal invisible hearing aid is lightweight and designed to be compact and lightweight. The color of operating surface is close to the skin tone, wear without the embarrassment. The ergonomic design of the sound hearing amplifier and the soft, skin-friendly earplugs in multiple sizes meet the needs of different people and are stress-free to wear for long time. 【Noise Reduction & Intelligent Chips】The latest upgraded 4-channel digital hearing aids contain an intelligent chip with automatic noise reduction to better protect your eardrums. And the sound is natural without distortion, the distortion rate is ≤ 3%, so y